1995372288 has 432 divisors, whose sum is σ = 7333021696. Its totient is φ = 507617280.

The previous prime is 1995372259. The next prime is 1995372293. The reversal of 1995372288 is 8822735991.

1995372288 is a `hidden beast` number, since 1 + 9 + 9 + 537 + 22 + 88 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6499431 + ... + 6499737.

Almost surely, 2^1995372288 is an apocalyptic number.

1995372288 is a gapful number since it is divisible by the number (18) 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 1995372288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3666510848).

1995372288 is an abundant number, since it is smaller than the sum of its proper divisors (5337649408).

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

1995372288 is a wasteful number, since it uses less digits than its factorization.

1995372288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 363 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 1995372288 is about 44669.5901928818. The cubic root of 1995372288 is about 1258.9485407998.

The spelling of 1995372288 in words is "one billion, nine hundred ninety-five million, three hundred seventy-two thousand, two hundred eighty-eight".