74740455 has 32 divisors (see below), whose sum is σ = 138654720. Its totient is φ = 38126880.

The previous prime is 74740451. The next prime is 74740459. The reversal of 74740455 is 55404747.

It is an interprime number because it is at equal distance from previous prime (74740451) and next prime (74740459).

It is not a de Polignac number, because 74740455 - 2² = 74740451 is a prime.

It is a super-2 number, since 2×74740455² = 11172271227214050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74740451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8931 + ... + 15140.

It is an arithmetic number, because the mean of its divisors is an integer number (4332960).

Almost surely, 2^74740455 is an apocalyptic number.

74740455 is a deficient number, since it is larger than the sum of its proper divisors (63914265).

74740455 is a wasteful number, since it uses less digits than its factorization.

74740455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24108 (or 24102 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 74740455 is about 8645.2562136700. The cubic root of 74740455 is about 421.2293065703.

The spelling of 74740455 in words is "seventy-four million, seven hundred forty thousand, four hundred fifty-five".