74454457 has 32 divisors (see below), whose sum is σ = 96307200. Its totient is φ = 55883520.

The previous prime is 74454449. The next prime is 74454461. The reversal of 74454457 is 75445447.

It is not a de Polignac number, because 74454457 - 2³ = 74454449 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (74454437) 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, 374044 + ... + 374242.

It is an arithmetic number, because the mean of its divisors is an integer number (3009600).

Almost surely, 2^74454457 is an apocalyptic number.

74454457 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

74454457 is a deficient number, since it is larger than the sum of its proper divisors (21852743).

74454457 is a wasteful number, since it uses less digits than its factorization.

74454457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its digits is 313600, while the sum is 40.

The square root of 74454457 is about 8628.6996123402. The cubic root of 74454457 is about 420.6913349586.

The spelling of 74454457 in words is "seventy-four million, four hundred fifty-four thousand, four hundred fifty-seven".