16400942 has 8 divisors (see below), whose sum is σ = 24618600. Its totient is φ = 8194744.

The previous prime is 16400939. The next prime is 16400959. The reversal of 16400942 is 24900461.

16400942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4184 + ... + 7092.

It is an arithmetic number, because the mean of its divisors is an integer number (3077325).

Almost surely, 2^16400942 is an apocalyptic number.

16400942 is a deficient number, since it is larger than the sum of its proper divisors (8217658).

16400942 is a wasteful number, since it uses less digits than its factorization.

16400942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 16400942 is about 4049.8076497533. The cubic root of 16400942 is about 254.0716829114.

The spelling of 16400942 in words is "sixteen million, four hundred thousand, nine hundred forty-two".