157936390 has 8 divisors (see below), whose sum is σ = 284285520. Its totient is φ = 63174552.

The previous prime is 157936369. The next prime is 157936393. The reversal of 157936390 is 93639751.

It is a happy number.

157936390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157936393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7896810 + ... + 7896829.

It is an arithmetic number, because the mean of its divisors is an integer number (35535690).

Almost surely, 2^157936390 is an apocalyptic number.

157936390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157936390 is a deficient number, since it is larger than the sum of its proper divisors (126349130).

157936390 is a wasteful number, since it uses less digits than its factorization.

157936390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15793646.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 157936390 is about 12567.2745653145. The cubic root of 157936390 is about 540.5394586165.

The spelling of 157936390 in words is "one hundred fifty-seven million, nine hundred thirty-six thousand, three hundred ninety".