202120414440 has 64 divisors (see below), whose sum is σ = 692984280960. Its totient is φ = 46198951680.

The previous prime is 202120414423. The next prime is 202120414451. The reversal of 202120414440 is 44414021202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 202120414440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120308931 + ... + 120310610.

It is an arithmetic number, because the mean of its divisors is an integer number (10827879390).

Almost surely, 2^202120414440 is an apocalyptic number.

202120414440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202120414440 is an abundant number, since it is smaller than the sum of its proper divisors (490863866520).

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

202120414440 is a wasteful number, since it uses less digits than its factorization.

202120414440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240619562 (or 240619558 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 202120414440 its reverse (44414021202), we get a palindrome (246534435642).

The spelling of 202120414440 in words is "two hundred two billion, one hundred twenty million, four hundred fourteen thousand, four hundred forty".