252002212440 has 64 divisors (see below), whose sum is σ = 824734517760. Its totient is φ = 61091445120.

The previous prime is 252002212439. The next prime is 252002212453. The reversal of 252002212440 is 44212200252.

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 252002212440.

It is a congruent number.

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, 95454064 + ... + 95456703.

It is an arithmetic number, because the mean of its divisors is an integer number (12886476840).

Almost surely, 2^252002212440 is an apocalyptic number.

252002212440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252002212440 is an abundant number, since it is smaller than the sum of its proper divisors (572732305320).

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

252002212440 is a wasteful number, since it uses less digits than its factorization.

252002212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190910792 (or 190910788 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 252002212440 its reverse (44212200252), we get a palindrome (296214412692).

The spelling of 252002212440 in words is "two hundred fifty-two billion, two million, two hundred twelve thousand, four hundred forty".