157506340 has 12 divisors (see below), whose sum is σ = 330763356. Its totient is φ = 63002528.

The previous prime is 157506317. The next prime is 157506359. The reversal of 157506340 is 43605751.

It can be written as a sum of positive squares in 2 ways, for example, as 124144164 + 33362176 = 11142^2 + 5776^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3937639 + ... + 3937678.

It is an arithmetic number, because the mean of its divisors is an integer number (27563613).

Almost surely, 2^157506340 is an apocalyptic number.

157506340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157506340 is an abundant number, since it is smaller than the sum of its proper divisors (173257016).

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

157506340 is a wasteful number, since it uses less digits than its factorization.

157506340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875326 (or 7875324 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 157506340 is about 12550.1529871153. The cubic root of 157506340 is about 540.0483952968.

The spelling of 157506340 in words is "one hundred fifty-seven million, five hundred six thousand, three hundred forty".