74229190 has 64 divisors (see below), whose sum is σ = 159989760. Its totient is φ = 24261120.

The previous prime is 74229187. The next prime is 74229209. The reversal of 74229190 is 9192247.

It is a happy number.

It is a super-2 number, since 2×74229190² = 11019945296112200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171214 + ... + 171646.

It is an arithmetic number, because the mean of its divisors is an integer number (2499840).

Almost surely, 2^74229190 is an apocalyptic number.

74229190 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74229190 is an abundant number, since it is smaller than the sum of its proper divisors (85760570).

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

74229190 is a wasteful number, since it uses less digits than its factorization.

74229190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 74229190 is about 8615.6363665141. The cubic root of 74229190 is about 420.2666296408.

The spelling of 74229190 in words is "seventy-four million, two hundred twenty-nine thousand, one hundred ninety".