18964401 has 8 divisors (see below), whose sum is σ = 26773344. Its totient is φ = 11899200.

The previous prime is 18964399. The next prime is 18964423. The reversal of 18964401 is 10446981.

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

It is not a de Polignac number, because 18964401 - 2¹ = 18964399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18964471) by changing a digit.

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, 185875 + ... + 185976.

It is an arithmetic number, because the mean of its divisors is an integer number (3346668).

Almost surely, 2^18964401 is an apocalyptic number.

It is an amenable number.

18964401 is a deficient number, since it is larger than the sum of its proper divisors (7808943).

18964401 is a wasteful number, since it uses less digits than its factorization.

18964401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371871.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 18964401 is about 4354.8135436549. The cubic root of 18964401 is about 266.6734072949.

The spelling of 18964401 in words is "eighteen million, nine hundred sixty-four thousand, four hundred one".