49452981 has 8 divisors (see below), whose sum is σ = 66521280. Its totient is φ = 32676672.

The previous prime is 49452961. The next prime is 49453021. The reversal of 49452981 is 18925494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49452981 - 2¹⁰ = 49451957 is a prime.

It is a super-2 number, since 2×49452981² = 4891194659572722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49452961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72601 + ... + 73278.

It is an arithmetic number, because the mean of its divisors is an integer number (8315160).

Almost surely, 2^49452981 is an apocalyptic number.

It is an amenable number.

49452981 is a deficient number, since it is larger than the sum of its proper divisors (17068299).

49452981 is a wasteful number, since it uses less digits than its factorization.

49452981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145995.

The product of its digits is 103680, while the sum is 42.

The square root of 49452981 is about 7032.2813510268. The cubic root of 49452981 is about 367.0547302846.

The spelling of 49452981 in words is "forty-nine million, four hundred fifty-two thousand, nine hundred eighty-one".