189628502 has 8 divisors (see below), whose sum is σ = 325077456. Its totient is φ = 81269352.

The previous prime is 189628487. The next prime is 189628507. The reversal of 189628502 is 205826981.

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

It is a self number, because there is not a number n which added to its sum of digits gives 189628502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189628507) 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, 6772433 + ... + 6772460.

It is an arithmetic number, because the mean of its divisors is an integer number (40634682).

Almost surely, 2^189628502 is an apocalyptic number.

189628502 is a deficient number, since it is larger than the sum of its proper divisors (135448954).

189628502 is a wasteful number, since it uses less digits than its factorization.

189628502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13544902.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 189628502 is about 13770.5665097700. The cubic root of 189628502 is about 574.5147785563.

The spelling of 189628502 in words is "one hundred eighty-nine million, six hundred twenty-eight thousand, five hundred two".