16420474 has 16 divisors (see below), whose sum is σ = 28536768. Its totient is φ = 6940512.

The previous prime is 16420463. The next prime is 16420507. The reversal of 16420474 is 47402461.

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, 7012 + ... + 9055.

It is an arithmetic number, because the mean of its divisors is an integer number (1783548).

Almost surely, 2^16420474 is an apocalyptic number.

16420474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16420474 is a deficient number, since it is larger than the sum of its proper divisors (12116294).

16420474 is a wasteful number, since it uses less digits than its factorization.

16420474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16149.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 16420474 is about 4052.2184047753. The cubic root of 16420474 is about 254.1725014994.

The spelling of 16420474 in words is "sixteen million, four hundred twenty thousand, four hundred seventy-four".