157789458 has 20 divisors (see below), whose sum is σ = 353565630. Its totient is φ = 52596432.

The previous prime is 157789447. The next prime is 157789469. The reversal of 157789458 is 854987751.

157789458 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 an interprime number because it is at equal distance from previous prime (157789447) and next prime (157789469).

It can be written as a sum of positive squares in only one way, i.e., 157176369 + 613089 = 12537^2 + 783^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 486843 + ... + 487166.

Almost surely, 2^157789458 is an apocalyptic number.

157789458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

157789458 is an abundant number, since it is smaller than the sum of its proper divisors (195776172).

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

157789458 is an equidigital number, since it uses as much as digits as its factorization.

157789458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974023 (or 974014 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The square root of 157789458 is about 12561.4273870448. The cubic root of 157789458 is about 540.3717810133.

The spelling of 157789458 in words is "one hundred fifty-seven million, seven hundred eighty-nine thousand, four hundred fifty-eight".