74401642 has 32 divisors (see below), whose sum is σ = 133804800. Its totient is φ = 30336768.

The previous prime is 74401627. The next prime is 74401651. The reversal of 74401642 is 24610447.

It is a self number, because there is not a number n which added to its sum of digits gives 74401642.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73234 + ... + 74242.

It is an arithmetic number, because the mean of its divisors is an integer number (4181400).

Almost surely, 2^74401642 is an apocalyptic number.

74401642 is a deficient number, since it is larger than the sum of its proper divisors (59403158).

74401642 is a wasteful number, since it uses less digits than its factorization.

74401642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 74401642 is about 8625.6386430223. The cubic root of 74401642 is about 420.5918375856.

The spelling of 74401642 in words is "seventy-four million, four hundred one thousand, six hundred forty-two".