16420494 has 16 divisors (see below), whose sum is σ = 33331968. Its totient is φ = 5391672.

The previous prime is 16420463. The next prime is 16420507. The reversal of 16420494 is 49402461.

It is a congruent number.

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, 20022 + ... + 20825.

It is an arithmetic number, because the mean of its divisors is an integer number (2083248).

Almost surely, 2^16420494 is an apocalyptic number.

16420494 is an abundant number, since it is smaller than the sum of its proper divisors (16911474).

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

16420494 is a wasteful number, since it uses less digits than its factorization.

16420494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40919.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 16420494 is about 4052.2208725587. The cubic root of 16420494 is about 254.1726046927.

The spelling of 16420494 in words is "sixteen million, four hundred twenty thousand, four hundred ninety-four".