157732380 has 96 divisors (see below), whose sum is σ = 528494400. Its totient is φ = 38824704.

The previous prime is 157732361. The next prime is 157732381. The reversal of 157732380 is 83237751.

157732380 is a `hidden beast` number, since 1 + 577 + 3 + 2 + 3 + 80 = 666.

157732380 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157732381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4215 + ... + 18254.

It is an arithmetic number, because the mean of its divisors is an integer number (5505150).

Almost surely, 2^157732380 is an apocalyptic number.

157732380 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 157732380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264247200).

157732380 is an abundant number, since it is smaller than the sum of its proper divisors (370762020).

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

157732380 is a wasteful number, since it uses less digits than its factorization.

157732380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22500 (or 22492 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 157732380 is about 12559.1552263677. The cubic root of 157732380 is about 540.3066159917.

The spelling of 157732380 in words is "one hundred fifty-seven million, seven hundred thirty-two thousand, three hundred eighty".