157283744 has 48 divisors (see below), whose sum is σ = 322672896. Its totient is φ = 75398400.

The previous prime is 157283719. The next prime is 157283747. The reversal of 157283744 is 447382751.

It is a super-2 number, since 2×157283744² = 49476352253315072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157283747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83129 + ... + 84999.

It is an arithmetic number, because the mean of its divisors is an integer number (6722352).

Almost surely, 2^157283744 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 157283744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161336448).

157283744 is an abundant number, since it is smaller than the sum of its proper divisors (165389152).

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

157283744 is a wasteful number, since it uses less digits than its factorization.

157283744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1981 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 157283744 is about 12541.2815932025. The cubic root of 157283744 is about 539.7938673684.

The spelling of 157283744 in words is "one hundred fifty-seven million, two hundred eighty-three thousand, seven hundred forty-four".