157889422 has 8 divisors (see below), whose sum is σ = 239276016. Its totient is φ = 78130752.

The previous prime is 157889419. The next prime is 157889429. The reversal of 157889422 is 224988751.

157889422 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 (157889429) 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, 406738 + ... + 407125.

It is an arithmetic number, because the mean of its divisors is an integer number (29909502).

Almost surely, 2^157889422 is an apocalyptic number.

157889422 is a deficient number, since it is larger than the sum of its proper divisors (81386594).

157889422 is an equidigital number, since it uses as much as digits as its factorization.

157889422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813962.

The product of its digits is 322560, while the sum is 46.

The square root of 157889422 is about 12565.4057634443. The cubic root of 157889422 is about 540.4858704296.

The spelling of 157889422 in words is "one hundred fifty-seven million, eight hundred eighty-nine thousand, four hundred twenty-two".