189995652 has 288 divisors, whose sum is σ = 648273920. Its totient is φ = 47044800.

The previous prime is 189995651. The next prime is 189995653. The reversal of 189995652 is 256599981.

It is an interprime number because it is at equal distance from previous prime (189995651) and next prime (189995653).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189995651) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2835723 + ... + 2835789.

Almost surely, 2^189995652 is an apocalyptic number.

189995652 is a gapful number since it is divisible by the number (12) 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 189995652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324136960).

189995652 is an abundant number, since it is smaller than the sum of its proper divisors (458278268).

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

189995652 is a wasteful number, since it uses less digits than its factorization.

189995652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 121 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 54.

The square root of 189995652 is about 13783.8910326511. The cubic root of 189995652 is about 574.8853225620.

The spelling of 189995652 in words is "one hundred eighty-nine million, nine hundred ninety-five thousand, six hundred fifty-two".