288022392 has 240 divisors, whose sum is σ = 963372960. Its totient is φ = 80123904.

The previous prime is 288022379. The next prime is 288022421. The reversal of 288022392 is 293220882.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1492248 + ... + 1492440.

It is an arithmetic number, because the mean of its divisors is an integer number (4014054).

Almost surely, 2^288022392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288022392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481686480).

288022392 is an abundant number, since it is smaller than the sum of its proper divisors (675350568).

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

288022392 is a wasteful number, since it uses less digits than its factorization.

288022392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 288022392 is about 16971.2224662810. Note that the first 3 decimals coincide. The cubic root of 288022392 is about 660.4025643250.

The spelling of 288022392 in words is "two hundred eighty-eight million, twenty-two thousand, three hundred ninety-two".