16400010 has 32 divisors (see below), whose sum is σ = 42939072. Its totient is φ = 3975680.

The previous prime is 16399987. The next prime is 16400017. The reversal of 16400010 is 1000461.

It is not an unprimeable number, because it can be changed into a prime (16400017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24519 + ... + 25178.

It is an arithmetic number, because the mean of its divisors is an integer number (1341846).

Almost surely, 2^16400010 is an apocalyptic number.

16400010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16400010 is an abundant number, since it is smaller than the sum of its proper divisors (26539062).

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

16400010 is a wasteful number, since it uses less digits than its factorization.

16400010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49718.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 16400010 is about 4049.6925809251. The cubic root of 16400010 is about 254.0668701941.

Adding to 16400010 its reverse (1000461), we get a palindrome (17400471).

The spelling of 16400010 in words is "sixteen million, four hundred thousand, ten".