403254994 has 12 divisors (see below), whose sum is σ = 642557754. Its totient is φ = 189766784.

The previous prime is 403254953. The next prime is 403255001. The reversal of 403254994 is 499452304.

It can be written as a sum of positive squares in 3 ways, for example, as 402523969 + 731025 = 20063^2 + 855^2 .

It is a super-2 number, since 2×403254994² = 325229180371880072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348259 + ... + 349414.

Almost surely, 2^403254994 is an apocalyptic number.

403254994 is a deficient number, since it is larger than the sum of its proper divisors (239302760).

403254994 is a wasteful number, since it uses less digits than its factorization.

403254994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697709 (or 697692 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 403254994 is about 20081.2099735051. The cubic root of 403254994 is about 738.7994863605.

The spelling of 403254994 in words is "four hundred three million, two hundred fifty-four thousand, nine hundred ninety-four".