16400146 has 16 divisors (see below), whose sum is σ = 28166976. Its totient is φ = 7015536.

The previous prime is 16400143. The next prime is 16400183. The reversal of 16400146 is 64100461.

It is not an unprimeable number, because it can be changed into a prime (16400141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12640 + ... + 13876.

It is an arithmetic number, because the mean of its divisors is an integer number (1760436).

Almost surely, 2^16400146 is an apocalyptic number.

16400146 is a deficient number, since it is larger than the sum of its proper divisors (11766830).

16400146 is a wasteful number, since it uses less digits than its factorization.

16400146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 16400146 is about 4049.7093722883. The cubic root of 16400146 is about 254.0675724904.

The spelling of 16400146 in words is "sixteen million, four hundred thousand, one hundred forty-six".