235155540 has 24 divisors (see below), whose sum is σ = 658435680. Its totient is φ = 62708128.

The previous prime is 235155527. The next prime is 235155559. The reversal of 235155540 is 45551532.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 235155498 and 235155507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1959570 + ... + 1959689.

It is an arithmetic number, because the mean of its divisors is an integer number (27434820).

Almost surely, 2^235155540 is an apocalyptic number.

235155540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235155540 is an abundant number, since it is smaller than the sum of its proper divisors (423280140).

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

235155540 is a wasteful number, since it uses less digits than its factorization.

235155540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919271 (or 3919269 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 235155540 is about 15334.7820330124. The cubic root of 235155540 is about 617.2366965196.

The spelling of 235155540 in words is "two hundred thirty-five million, one hundred fifty-five thousand, five hundred forty".