189898948 has 24 divisors (see below), whose sum is σ = 356150592. Its totient is φ = 88365024.

The previous prime is 189898897. The next prime is 189898949. The reversal of 189898948 is 849898981.

It is a super-2 number, since 2×189898948² = 72123220903013408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189898948.

It is not an unprimeable number, because it can be changed into a prime (189898949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24490 + ... + 31297.

It is an arithmetic number, because the mean of its divisors is an integer number (14839608).

Almost surely, 2^189898948 is an apocalyptic number.

It is an amenable number.

189898948 is a deficient number, since it is larger than the sum of its proper divisors (166251644).

189898948 is a wasteful number, since it uses less digits than its factorization.

189898948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55851 (or 55849 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 64.

The square root of 189898948 is about 13780.3827232773. The cubic root of 189898948 is about 574.7877709525.

The spelling of 189898948 in words is "one hundred eighty-nine million, eight hundred ninety-eight thousand, nine hundred forty-eight".