189623401 has 16 divisors (see below), whose sum is σ = 223070400. Its totient is φ = 159321600.

The previous prime is 189623393. The next prime is 189623411. The reversal of 189623401 is 104326981.

189623401 = 1480² + 1481² + ... + 1561².

It is a cyclic number.

It is not a de Polignac number, because 189623401 - 2³ = 189623393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189623411) 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, 2496 + ... + 19633.

It is an arithmetic number, because the mean of its divisors is an integer number (13941900).

Almost surely, 2^189623401 is an apocalyptic number.

189623401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

189623401 is a deficient number, since it is larger than the sum of its proper divisors (33446999).

189623401 is a wasteful number, since it uses less digits than its factorization.

189623401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22200.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 189623401 is about 13770.3812946483. The cubic root of 189623401 is about 574.5096270343.

The spelling of 189623401 in words is "one hundred eighty-nine million, six hundred twenty-three thousand, four hundred one".