74252990 has 32 divisors (see below), whose sum is σ = 153282240. Its totient is φ = 25369344.

The previous prime is 74252989. The next prime is 74252999. The reversal of 74252990 is 9925247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74252999) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20216 + ... + 23604.

It is an arithmetic number, because the mean of its divisors is an integer number (4790070).

Almost surely, 2^74252990 is an apocalyptic number.

74252990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74252990 is an abundant number, since it is smaller than the sum of its proper divisors (79029250).

74252990 is a wasteful number, since it uses less digits than its factorization.

74252990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 74252990 is about 8617.0174654575. The cubic root of 74252990 is about 420.3115413391.

The spelling of 74252990 in words is "seventy-four million, two hundred fifty-two thousand, nine hundred ninety".