74869390 has 16 divisors (see below), whose sum is σ = 137308608. Its totient is φ = 29382496.

The previous prime is 74869373. The next prime is 74869397. The reversal of 74869390 is 9396847.

It is a self number, because there is not a number n which added to its sum of digits gives 74869390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74869397) 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, 70102 + ... + 71161.

It is an arithmetic number, because the mean of its divisors is an integer number (8581788).

Almost surely, 2^74869390 is an apocalyptic number.

74869390 is a deficient number, since it is larger than the sum of its proper divisors (62439218).

74869390 is a wasteful number, since it uses less digits than its factorization.

74869390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141323.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 74869390 is about 8652.7099801161. The cubic root of 74869390 is about 421.4713887632.

The spelling of 74869390 in words is "seventy-four million, eight hundred sixty-nine thousand, three hundred ninety".