75400457 has 16 divisors (see below), whose sum is σ = 89128512. Its totient is φ = 63006720.

The previous prime is 75400441. The next prime is 75400469.

75400457 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 75400457 - 2⁴ = 75400441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75400057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3353 + ... + 12729.

It is an arithmetic number, because the mean of its divisors is an integer number (5570532).

Almost surely, 2^75400457 is an apocalyptic number.

It is an amenable number.

75400457 is a deficient number, since it is larger than the sum of its proper divisors (13728055).

75400457 is a wasteful number, since it uses less digits than its factorization.

75400457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9448.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 75400457 is about 8683.3436532248. The cubic root of 75400457 is about 422.4655751978.

It can be divided in two parts, 75400 and 457, that added together give a palindrome (75857).

The spelling of 75400457 in words is "seventy-five million, four hundred thousand, four hundred fifty-seven".