157746020 has 24 divisors (see below), whose sum is σ = 337519224. Its totient is φ = 61907456.

The previous prime is 157746007. The next prime is 157746023. The reversal of 157746020 is 20647751.

It can be written as a sum of positive squares in 4 ways, for example, as 32171584 + 125574436 = 5672^2 + 11206^2 .

It is not an unprimeable number, because it can be changed into a prime (157746023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73349 + ... + 75468.

It is an arithmetic number, because the mean of its divisors is an integer number (14063301).

Almost surely, 2^157746020 is an apocalyptic number.

157746020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157746020 is an abundant number, since it is smaller than the sum of its proper divisors (179773204).

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

157746020 is a wasteful number, since it uses less digits than its factorization.

157746020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148879 (or 148877 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 157746020 is about 12559.6982447828. The cubic root of 157746020 is about 540.3221899865.

The spelling of 157746020 in words is "one hundred fifty-seven million, seven hundred forty-six thousand, twenty".