74063990 has 128 divisors (see below), whose sum is σ = 183859200. Its totient is φ = 21168000.

The previous prime is 74063911. The next prime is 74064041. The reversal of 74063990 is 9936047.

It is a super-2 number, since 2×74063990² = 10970949229440200, 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 (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 490415 + ... + 490565.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 2^74063990 is an apocalyptic number.

74063990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74063990 is an abundant number, since it is smaller than the sum of its proper divisors (109795210).

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

74063990 is a wasteful number, since it uses less digits than its factorization.

74063990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 74063990 is about 8606.0438065350. The cubic root of 74063990 is about 419.9546247276.

The spelling of 74063990 in words is "seventy-four million, sixty-three thousand, nine hundred ninety".