74942405 has 16 divisors (see below), whose sum is σ = 91344000. Its totient is φ = 59019840.

The previous prime is 74942401. The next prime is 74942411. The reversal of 74942405 is 50424947.

It is not a de Polignac number, because 74942405 - 2² = 74942401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74942401) 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, 108110 + ... + 108800.

It is an arithmetic number, because the mean of its divisors is an integer number (5709000).

Almost surely, 2^74942405 is an apocalyptic number.

It is an amenable number.

74942405 is a deficient number, since it is larger than the sum of its proper divisors (16401595).

74942405 is a wasteful number, since it uses less digits than its factorization.

74942405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 74942405 is about 8656.9281503314. The cubic root of 74942405 is about 421.6083549966.

The spelling of 74942405 in words is "seventy-four million, nine hundred forty-two thousand, four hundred five".