189628464 has 40 divisors (see below), whose sum is σ = 494222832. Its totient is φ = 62648320.

The previous prime is 189628463. The next prime is 189628469. The reversal of 189628464 is 464826981.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (189628463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12057 + ... + 22904.

Almost surely, 2^189628464 is an apocalyptic number.

It is an amenable number.

189628464 is an abundant number, since it is smaller than the sum of its proper divisors (304594368).

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

189628464 is a wasteful number, since it uses less digits than its factorization.

189628464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35085 (or 35079 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 189628464 is about 13770.5651300155. The cubic root of 189628464 is about 574.5147401802.

189628464 divided by its sum of digits (48) gives a palindrome (3950593).

The spelling of 189628464 in words is "one hundred eighty-nine million, six hundred twenty-eight thousand, four hundred sixty-four".