202412302440 has 32 divisors (see below), whose sum is σ = 607236907680. Its totient is φ = 53976613952.

The previous prime is 202412302409. The next prime is 202412302481. The reversal of 202412302440 is 44203214202.

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 202412302440.

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, 843384474 + ... + 843384713.

It is an arithmetic number, because the mean of its divisors is an integer number (18976153365).

Almost surely, 2^202412302440 is an apocalyptic number.

202412302440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202412302440 is an abundant number, since it is smaller than the sum of its proper divisors (404824605240).

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

202412302440 is a wasteful number, since it uses less digits than its factorization.

202412302440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686769201 (or 1686769197 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 202412302440 its reverse (44203214202), we get a palindrome (246615516642).

The spelling of 202412302440 in words is "two hundred two billion, four hundred twelve million, three hundred two thousand, four hundred forty".