16642402 has 16 divisors (see below), whose sum is σ = 28582272. Its totient is φ = 7119360.

The previous prime is 16642399. The next prime is 16642429. The reversal of 16642402 is 20424661.

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, 13858 + ... + 15010.

It is an arithmetic number, because the mean of its divisors is an integer number (1786392).

Almost surely, 2^16642402 is an apocalyptic number.

16642402 is a deficient number, since it is larger than the sum of its proper divisors (11939870).

16642402 is a wasteful number, since it uses less digits than its factorization.

16642402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 16642402 is about 4079.5100195979. The cubic root of 16642402 is about 255.3124556385.

The spelling of 16642402 in words is "sixteen million, six hundred forty-two thousand, four hundred two".