16380475 has 6 divisors (see below), whose sum is σ = 20311820. Its totient is φ = 13104360.

The previous prime is 16380473. The next prime is 16380479. The reversal of 16380475 is 57408361.

It is not a de Polignac number, because 16380475 - 2¹ = 16380473 is a prime.

It is a super-2 number, since 2×16380475² = 536639922451250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16380475.

It is not an unprimeable number, because it can be changed into a prime (16380473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 327585 + ... + 327634.

Almost surely, 2^16380475 is an apocalyptic number.

16380475 is a deficient number, since it is larger than the sum of its proper divisors (3931345).

16380475 is an equidigital number, since it uses as much as digits as its factorization.

16380475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655229 (or 655224 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 16380475 is about 4047.2799507818. The cubic root of 16380475 is about 253.9659522015.

The spelling of 16380475 in words is "sixteen million, three hundred eighty thousand, four hundred seventy-five".