202930840 has 64 divisors (see below), whose sum is σ = 544527360. Its totient is φ = 66549120.

The previous prime is 202930831. The next prime is 202930843. The reversal of 202930840 is 48039202.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 202930799 and 202930808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202930843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9316 + ... + 22195.

It is an arithmetic number, because the mean of its divisors is an integer number (8508240).

Almost surely, 2^202930840 is an apocalyptic number.

202930840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202930840 is an abundant number, since it is smaller than the sum of its proper divisors (341596520).

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

202930840 is a wasteful number, since it uses less digits than its factorization.

202930840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31552 (or 31548 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 202930840 is about 14245.3796018218. The cubic root of 202930840 is about 587.6463157529.

The spelling of 202930840 in words is "two hundred two million, nine hundred thirty thousand, eight hundred forty".