74642946 has 16 divisors (see below), whose sum is σ = 170612544. Its totient is φ = 21326544.

The previous prime is 74642929. The next prime is 74642951. The reversal of 74642946 is 64924647.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1777213 = 74642946 / (7 + 4 + 6 + 4 + 2 + 9 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 74642898 and 74642907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888565 + ... + 888648.

It is an arithmetic number, because the mean of its divisors is an integer number (10663284).

Almost surely, 2^74642946 is an apocalyptic number.

74642946 is an abundant number, since it is smaller than the sum of its proper divisors (95969598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74642946 is a wasteful number, since it uses less digits than its factorization.

74642946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777225.

The product of its digits is 290304, while the sum is 42.

The square root of 74642946 is about 8639.6149219742. The cubic root of 74642946 is about 421.0460433766.

The spelling of 74642946 in words is "seventy-four million, six hundred forty-two thousand, nine hundred forty-six".