202130400440 has 32 divisors (see below), whose sum is σ = 474567029280. Its totient is φ = 77336848512.

The previous prime is 202130400383. The next prime is 202130400487. The reversal of 202130400440 is 44004031202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 109852559 + ... + 109854398.

It is an arithmetic number, because the mean of its divisors is an integer number (14830219665).

Almost surely, 2^202130400440 is an apocalyptic number.

202130400440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202130400440 is an abundant number, since it is smaller than the sum of its proper divisors (272436628840).

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

202130400440 is a wasteful number, since it uses less digits than its factorization.

202130400440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219706991 (or 219706987 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 202130400440 its reverse (44004031202), we get a palindrome (246134431642).

The spelling of 202130400440 in words is "two hundred two billion, one hundred thirty million, four hundred thousand, four hundred forty".