202090920 has 32 divisors (see below), whose sum is σ = 606273120. Its totient is φ = 53890880.

The previous prime is 202090913. The next prime is 202090939. The reversal of 202090920 is 29090202.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 841926 + ... + 842165.

It is an arithmetic number, because the mean of its divisors is an integer number (18946035).

Almost surely, 2^202090920 is an apocalyptic number.

202090920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202090920 is an abundant number, since it is smaller than the sum of its proper divisors (404182200).

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

202090920 is a wasteful number, since it uses less digits than its factorization.

202090920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684105 (or 1684101 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 202090920 is about 14215.8685981547. The cubic root of 202090920 is about 586.8344489692.

The spelling of 202090920 in words is "two hundred two million, ninety thousand, nine hundred twenty".