288012779240 has 32 divisors (see below), whose sum is σ = 649416437280. Its totient is φ = 114958412352.

The previous prime is 288012779233. The next prime is 288012779267. The reversal of 288012779240 is 42977210882.

It is a super-2 number, since 2×288012779240² (a number of 24 digits) contains 22 as substring.

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, 7690442 + ... + 7727801.

It is an arithmetic number, because the mean of its divisors is an integer number (20294263665).

Almost surely, 2^288012779240 is an apocalyptic number.

288012779240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

288012779240 is an abundant number, since it is smaller than the sum of its proper divisors (361403658040).

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

288012779240 is a wasteful number, since it uses less digits than its factorization.

288012779240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15418721 (or 15418717 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 288012779240 in words is "two hundred eighty-eight billion, twelve million, seven hundred seventy-nine thousand, two hundred forty".