74572405 has 16 divisors (see below), whose sum is σ = 90725184. Its totient is φ = 58839040.

The previous prime is 74572403. The next prime is 74572411. The reversal of 74572405 is 50427547.

It is not a de Polignac number, because 74572405 - 2¹ = 74572403 is a prime.

It is a super-2 number, since 2×74572405² = 11122087174968050, 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 (74572403) 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, 168114 + ... + 168556.

It is an arithmetic number, because the mean of its divisors is an integer number (5670324).

Almost surely, 2^74572405 is an apocalyptic number.

It is an amenable number.

74572405 is a deficient number, since it is larger than the sum of its proper divisors (16152779).

74572405 is a wasteful number, since it uses less digits than its factorization.

74572405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 74572405 is about 8635.5315412544. The cubic root of 74572405 is about 420.9133656456.

The spelling of 74572405 in words is "seventy-four million, five hundred seventy-two thousand, four hundred five".