157424020 has 24 divisors (see below), whose sum is σ = 356021064. Its totient is φ = 58125696.

The previous prime is 157424017. The next prime is 157424027. The reversal of 157424020 is 20424751.

It can be written as a sum of positive squares in 4 ways, for example, as 21904 + 157402116 = 148^2 + 12546^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157424027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302479 + ... + 302998.

It is an arithmetic number, because the mean of its divisors is an integer number (14834211).

Almost surely, 2^157424020 is an apocalyptic number.

157424020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157424020 is an abundant number, since it is smaller than the sum of its proper divisors (198597044).

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

157424020 is a wasteful number, since it uses less digits than its factorization.

157424020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605499 (or 605497 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 157424020 is about 12546.8729171854. The cubic root of 157424020 is about 539.9542942568.

Adding to 157424020 its reverse (20424751), we get a palindrome (177848771).

The spelling of 157424020 in words is "one hundred fifty-seven million, four hundred twenty-four thousand, twenty".