74151890 has 16 divisors (see below), whose sum is σ = 133607232. Its totient is φ = 29631024.

The previous prime is 74151817. The next prime is 74151893. The reversal of 74151890 is 9815147.

It is a self number, because there is not a number n which added to its sum of digits gives 74151890.

It is not an unprimeable number, because it can be changed into a prime (74151893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8747 + ... + 14993.

It is an arithmetic number, because the mean of its divisors is an integer number (8350452).

Almost surely, 2^74151890 is an apocalyptic number.

74151890 is a deficient number, since it is larger than the sum of its proper divisors (59455342).

74151890 is a wasteful number, since it uses less digits than its factorization.

74151890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7441.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 74151890 is about 8611.1491683747. The cubic root of 74151890 is about 420.1206947157.

The spelling of 74151890 in words is "seventy-four million, one hundred fifty-one thousand, eight hundred ninety".