164377944 has 32 divisors (see below), whose sum is σ = 456606000. Its totient is φ = 54792576.

The previous prime is 164377921. The next prime is 164377973. The reversal of 164377944 is 449773461.

It is a self number, because there is not a number n which added to its sum of digits gives 164377944.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380289 + ... + 380720.

Almost surely, 2^164377944 is an apocalyptic number.

It is an amenable number.

164377944 is an abundant number, since it is smaller than the sum of its proper divisors (292228056).

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

164377944 is a wasteful number, since it uses less digits than its factorization.

164377944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761024 (or 761014 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 164377944 is about 12820.9962171432. The cubic root of 164377944 is about 547.7905232360.

The spelling of 164377944 in words is "one hundred sixty-four million, three hundred seventy-seven thousand, nine hundred forty-four".