235157980 has 24 divisors (see below), whose sum is σ = 515303712. Its totient is φ = 89973312.

The previous prime is 235157963. The next prime is 235157983. The reversal of 235157980 is 89751532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235157983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255147 + ... + 256066.

It is an arithmetic number, because the mean of its divisors is an integer number (21470988).

Almost surely, 2^235157980 is an apocalyptic number.

235157980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235157980 is an abundant number, since it is smaller than the sum of its proper divisors (280145732).

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

235157980 is a wasteful number, since it uses less digits than its factorization.

235157980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511245 (or 511243 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 235157980 is about 15334.8615905068. The cubic root of 235157980 is about 617.2388313510.

The spelling of 235157980 in words is "two hundred thirty-five million, one hundred fifty-seven thousand, nine hundred eighty".