202378140 has 72 divisors (see below), whose sum is σ = 615232800. Its totient is φ = 53848704.

The previous prime is 202378109. The next prime is 202378213. The reversal of 202378140 is 41873202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106882 + ... + 108758.

It is an arithmetic number, because the mean of its divisors is an integer number (8544900).

Almost surely, 2^202378140 is an apocalyptic number.

202378140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202378140 is an abundant number, since it is smaller than the sum of its proper divisors (412854660).

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

202378140 is a wasteful number, since it uses less digits than its factorization.

202378140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491 (or 2486 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 202378140 is about 14225.9671024504. The cubic root of 202378140 is about 587.1123285213.

The spelling of 202378140 in words is "two hundred two million, three hundred seventy-eight thousand, one hundred forty".