74648590 has 8 divisors (see below), whose sum is σ = 134367480. Its totient is φ = 29859432.

The previous prime is 74648579. The next prime is 74648597. The reversal of 74648590 is 9584647.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74648597) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3732420 + ... + 3732439.

It is an arithmetic number, because the mean of its divisors is an integer number (16795935).

Almost surely, 2^74648590 is an apocalyptic number.

74648590 is a deficient number, since it is larger than the sum of its proper divisors (59718890).

74648590 is a wasteful number, since it uses less digits than its factorization.

74648590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7464866.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 74648590 is about 8639.9415507282. The cubic root of 74648590 is about 421.0566553371.

The spelling of 74648590 in words is "seventy-four million, six hundred forty-eight thousand, five hundred ninety".