157995744 has 48 divisors (see below), whose sum is σ = 416520720. Its totient is φ = 52439040.

The previous prime is 157995727. The next prime is 157995749. The reversal of 157995744 is 447599751.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×157995744² = 49925310244227072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157995749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19722 + ... + 26550.

It is an arithmetic number, because the mean of its divisors is an integer number (8677515).

Almost surely, 2^157995744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157995744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208260360).

157995744 is an abundant number, since it is smaller than the sum of its proper divisors (258524976).

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

157995744 is a wasteful number, since it uses less digits than its factorization.

157995744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083 (or 7075 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 51.

The square root of 157995744 is about 12569.6357942464. The cubic root of 157995744 is about 540.6071634286.

The spelling of 157995744 in words is "one hundred fifty-seven million, nine hundred ninety-five thousand, seven hundred forty-four".