403474385 has 4 divisors (see below), whose sum is σ = 484169268. Its totient is φ = 322779504.

The previous prime is 403474373. The next prime is 403474387. The reversal of 403474385 is 583474304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174345616 + 229128769 = 13204^2 + 15137^2 .

It is a cyclic number.

It is not a de Polignac number, because 403474385 - 2⁴ = 403474369 is a prime.

It is a super-2 number, since 2×403474385² = 325583158702256450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403474387) 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, 40347434 + ... + 40347443.

It is an arithmetic number, because the mean of its divisors is an integer number (121042317).

Almost surely, 2^403474385 is an apocalyptic number.

It is an amenable number.

403474385 is a deficient number, since it is larger than the sum of its proper divisors (80694883).

403474385 is an equidigital number, since it uses as much as digits as its factorization.

403474385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80694882.

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 403474385 is about 20086.6718248693. The cubic root of 403474385 is about 738.9334434307.

The spelling of 403474385 in words is "four hundred three million, four hundred seventy-four thousand, three hundred eighty-five".