74621490 has 16 divisors (see below), whose sum is σ = 179091648. Its totient is φ = 19899056.

The previous prime is 74621467. The next prime is 74621501. The reversal of 74621490 is 9412647.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 1243662 + ... + 1243721.

It is an arithmetic number, because the mean of its divisors is an integer number (11193228).

Almost surely, 2^74621490 is an apocalyptic number.

74621490 is an abundant number, since it is smaller than the sum of its proper divisors (104470158).

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

74621490 is a wasteful number, since it uses less digits than its factorization.

74621490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487393.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 74621490 is about 8638.3731107194. The cubic root of 74621490 is about 421.0056964980.

The spelling of 74621490 in words is "seventy-four million, six hundred twenty-one thousand, four hundred ninety".