235397820 has 48 divisors (see below), whose sum is σ = 753274368. Its totient is φ = 53805120.

The previous prime is 235397809. The next prime is 235397839. The reversal of 235397820 is 28793532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279816 + ... + 280655.

It is an arithmetic number, because the mean of its divisors is an integer number (15693216).

Almost surely, 2^235397820 is an apocalyptic number.

235397820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235397820 is an abundant number, since it is smaller than the sum of its proper divisors (517876548).

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

235397820 is a wasteful number, since it uses less digits than its factorization.

235397820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560490 (or 560488 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 235397820 is about 15342.6796877208. The cubic root of 235397820 is about 617.4486027582.

The spelling of 235397820 in words is "two hundred thirty-five million, three hundred ninety-seven thousand, eight hundred twenty".