74671642 has 8 divisors (see below), whose sum is σ = 112060116. Its totient is φ = 37318272.

The previous prime is 74671631. The next prime is 74671651. The reversal of 74671642 is 24617647.

It can be written as a sum of positive squares in 2 ways, for example, as 74666881 + 4761 = 8641^2 + 69^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 2583 + ... + 12490.

Almost surely, 2^74671642 is an apocalyptic number.

74671642 is a deficient number, since it is larger than the sum of its proper divisors (37388474).

74671642 is a wasteful number, since it uses less digits than its factorization.

74671642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17552.

The product of its digits is 56448, while the sum is 37.

The square root of 74671642 is about 8641.2754845567. The cubic root of 74671642 is about 421.0999926106.

The spelling of 74671642 in words is "seventy-four million, six hundred seventy-one thousand, six hundred forty-two".