74403690 has 32 divisors (see below), whose sum is σ = 180726336. Its totient is φ = 19601280.

The previous prime is 74403673. The next prime is 74403691. The reversal of 74403690 is 9630447.

It is a super-2 number, since 2×74403690² = 11071818171232200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74403691) 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, 12451 + ... + 17430.

It is an arithmetic number, because the mean of its divisors is an integer number (5647698).

Almost surely, 2^74403690 is an apocalyptic number.

74403690 is an abundant number, since it is smaller than the sum of its proper divisors (106322646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74403690 is a wasteful number, since it uses less digits than its factorization.

74403690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29974.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 74403690 is about 8625.7573580527. The cubic root of 74403690 is about 420.5956966590.

The spelling of 74403690 in words is "seventy-four million, four hundred three thousand, six hundred ninety".