188948700 has 90 divisors (see below), whose sum is σ = 612523296. Its totient is φ = 50384160.

The previous prime is 188948681. The next prime is 188948701. The reversal of 188948700 is 7849881.

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×188948700² = 71403222463380000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188948701) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3564 + ... + 19763.

Almost surely, 2^188948700 is an apocalyptic number.

188948700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188948700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306261648).

188948700 is an abundant number, since it is smaller than the sum of its proper divisors (423574596).

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

188948700 is a wasteful number, since it uses less digits than its factorization.

188948700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23353 (or 23337 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 188948700 is about 13745.8611952835. The cubic root of 188948700 is about 573.8274277154.

The spelling of 188948700 in words is "one hundred eighty-eight million, nine hundred forty-eight thousand, seven hundred".