49105040 has 20 divisors (see below), whose sum is σ = 114169404. Its totient is φ = 19641984.

The previous prime is 49105039. The next prime is 49105081. The reversal of 49105040 is 4050194.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23541904 + 25563136 = 4852^2 + 5056^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×49105040² = 4822609906803200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49104997 and 49105015.

It is an unprimeable number.

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, 306827 + ... + 306986.

Almost surely, 2^49105040 is an apocalyptic number.

49105040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49105040 is an abundant number, since it is smaller than the sum of its proper divisors (65064364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49105040 is a wasteful number, since it uses less digits than its factorization.

49105040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613826 (or 613820 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 49105040 is about 7007.4988405279. The cubic root of 49105040 is about 366.1918629352.

The spelling of 49105040 in words is "forty-nine million, one hundred five thousand, forty".