746474440 has 16 divisors (see below), whose sum is σ = 1679567580. Its totient is φ = 298589760.

The previous prime is 746474429. The next prime is 746474447. The reversal of 746474440 is 44474647.

It can be written as a sum of positive squares in 2 ways, for example, as 680896836 + 65577604 = 26094^2 + 8098^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 18661861 = 746474440 / (7 + 4 + 6 + 4 + 7 + 4 + 4 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 746474393 and 746474402.

It is not an unprimeable number, because it can be changed into a prime (746474447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9330891 + ... + 9330970.

Almost surely, 2^746474440 is an apocalyptic number.

It is an amenable number.

746474440 is an abundant number, since it is smaller than the sum of its proper divisors (933093140).

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

746474440 is a wasteful number, since it uses less digits than its factorization.

746474440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18661872 (or 18661868 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 40.

The square root of 746474440 is about 27321.6844283071. The cubic root of 746474440 is about 907.1344225912.

The spelling of 746474440 in words is "seven hundred forty-six million, four hundred seventy-four thousand, four hundred forty".