16401764 has 12 divisors (see below), whose sum is σ = 29190000. Its totient is φ = 8061768.

The previous prime is 16401761. The next prime is 16401773. The reversal of 16401764 is 46710461.

16401764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16401761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34514 + ... + 34985.

It is an arithmetic number, because the mean of its divisors is an integer number (2432500).

Almost surely, 2^16401764 is an apocalyptic number.

It is an amenable number.

16401764 is a deficient number, since it is larger than the sum of its proper divisors (12788236).

16401764 is a wasteful number, since it uses less digits than its factorization.

16401764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69562 (or 69560 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 16401764 is about 4049.9091347831. The cubic root of 16401764 is about 254.0759274529.

The spelling of 16401764 in words is "sixteen million, four hundred one thousand, seven hundred sixty-four".