402242004240 has 80 divisors (see below), whose sum is σ = 1280651598528. Its totient is φ = 104365490688.

The previous prime is 402242004221. The next prime is 402242004259. The reversal of 402242004240 is 42400242204.

It is an interprime number because it is at equal distance from previous prime (402242004221) and next prime (402242004259).

It is a tau number, because it is divible by the number of its divisors (80).

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 402242004240.

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, 22639882 + ... + 22657641.

Almost surely, 2^402242004240 is an apocalyptic number.

402242004240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402242004240 is an abundant number, since it is smaller than the sum of its proper divisors (878409594288).

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

402242004240 is a wasteful number, since it uses less digits than its factorization.

402242004240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45297576 (or 45297570 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 402242004240 its reverse (42400242204), we get a palindrome (444642246444).

The spelling of 402242004240 in words is "four hundred two billion, two hundred forty-two million, four thousand, two hundred forty".