16420766 has 16 divisors (see below), whose sum is σ = 25510464. Its totient is φ = 7922304.

The previous prime is 16420751. The next prime is 16420777. The reversal of 16420766 is 66702461.

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, 5666 + ... + 8058.

It is an arithmetic number, because the mean of its divisors is an integer number (1594404).

Almost surely, 2^16420766 is an apocalyptic number.

16420766 is a deficient number, since it is larger than the sum of its proper divisors (9089698).

16420766 is a wasteful number, since it uses less digits than its factorization.

16420766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 16420766 is about 4052.2544342625. The cubic root of 16420766 is about 254.1740081131.

The spelling of 16420766 in words is "sixteen million, four hundred twenty thousand, seven hundred sixty-six".