74402190 has 48 divisors (see below), whose sum is σ = 198682848. Its totient is φ = 19303488.

The previous prime is 74402189. The next prime is 74402213. The reversal of 74402190 is 9120447.

It is a happy number.

74402190 is a `hidden beast` number, since 7 + 440 + 219 + 0 = 666.

It is a super-2 number, since 2×74402190² = 11071371753592200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7842 + ... + 14501.

It is an arithmetic number, because the mean of its divisors is an integer number (4139226).

Almost surely, 2^74402190 is an apocalyptic number.

74402190 is an abundant number, since it is smaller than the sum of its proper divisors (124280658).

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

74402190 is a wasteful number, since it uses less digits than its factorization.

74402190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22393 (or 22390 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 74402190 is about 8625.6704087277. The cubic root of 74402190 is about 420.5928701962.

The spelling of 74402190 in words is "seventy-four million, four hundred two thousand, one hundred ninety".