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4493949 = 31497983
BaseRepresentation
bin10001001001001001111101
322110022112120
4101021021331
52122301244
6240153153
753124615
oct21111175
98408476
104493949
11259a409
1216087b9
13c14655
1484da45
155db819
hex44927d

4493949 has 4 divisors (see below), whose sum is σ = 5991936. Its totient is φ = 2995964.

The previous prime is 4493939. The next prime is 4494019. The reversal of 4493949 is 9493944.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4493949 - 27 = 4493821 is a prime.

It is a super-2 number, since 2×44939492 = 40391155229202, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 4493949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4493939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748989 + ... + 748994.

It is an arithmetic number, because the mean of its divisors is an integer number (1497984).

Almost surely, 24493949 is an apocalyptic number.

It is an amenable number.

4493949 is a deficient number, since it is larger than the sum of its proper divisors (1497987).

4493949 is a wasteful number, since it uses less digits than its factorization.

4493949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497986.

The product of its digits is 139968, while the sum is 42.

The square root of 4493949 is about 2119.8936294069. The cubic root of 4493949 is about 165.0223293931.

The spelling of 4493949 in words is "four million, four hundred ninety-three thousand, nine hundred forty-nine".

Divisors: 1 3 1497983 4493949