202423040 has 36 divisors (see below), whose sum is σ = 484869504. Its totient is φ = 80968704.

The previous prime is 202423037. The next prime is 202423073. The reversal of 202423040 is 40324202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77792 + ... + 80351.

Almost surely, 2^202423040 is an apocalyptic number.

202423040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202423040 is an abundant number, since it is smaller than the sum of its proper divisors (282446464).

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

202423040 is an equidigital number, since it uses as much as digits as its factorization.

202423040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158164 (or 158150 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 202423040 is about 14227.5451150225. The cubic root of 202423040 is about 587.1557445976.

Adding to 202423040 its reverse (40324202), we get a palindrome (242747242).

The spelling of 202423040 in words is "two hundred two million, four hundred twenty-three thousand, forty".