74575431 has 16 divisors (see below), whose sum is σ = 126265600. Its totient is φ = 42614424.

The previous prime is 74575411. The next prime is 74575441. The reversal of 74575431 is 13457547.

It is a happy number.

It is not a de Polignac number, because 74575431 - 2¹⁹ = 74051143 is a prime.

It is a super-2 number, since 2×74575431² = 11122989817671522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74575411) 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, 197101 + ... + 197478.

It is an arithmetic number, because the mean of its divisors is an integer number (7891600).

Almost surely, 2^74575431 is an apocalyptic number.

74575431 is a deficient number, since it is larger than the sum of its proper divisors (51690169).

74575431 is a wasteful number, since it uses less digits than its factorization.

74575431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394595 (or 394589 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 74575431 is about 8635.7067458315. The cubic root of 74575431 is about 420.9190588446.

It can be divided in two parts, 745 and 75431, that added together give a square (76176 = 276²).

The spelling of 74575431 in words is "seventy-four million, five hundred seventy-five thousand, four hundred thirty-one".