202042040 has 32 divisors (see below), whose sum is σ = 454999680. Its totient is φ = 80744832.

The previous prime is 202042039. The next prime is 202042103. The reversal of 202042040 is 40240202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84542 + ... + 86898.

It is an arithmetic number, because the mean of its divisors is an integer number (14218740).

Almost surely, 2^202042040 is an apocalyptic number.

202042040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202042040 is an abundant number, since it is smaller than the sum of its proper divisors (252957640).

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

202042040 is a wasteful number, since it uses less digits than its factorization.

202042040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511 (or 4507 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 202042040 is about 14214.1492886490. The cubic root of 202042040 is about 586.7871323442.

Adding to 202042040 its reverse (40240202), we get a palindrome (242282242).

The spelling of 202042040 in words is "two hundred two million, forty-two thousand, forty".