288401628 has 24 divisors (see below), whose sum is σ = 673318800. Its totient is φ = 96079360.

The previous prime is 288401591. The next prime is 288401629. The reversal of 288401628 is 826104882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288401629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19198 + ... + 30746.

It is an arithmetic number, because the mean of its divisors is an integer number (28054950).

Almost surely, 2^288401628 is an apocalyptic number.

It is an amenable number.

288401628 is an abundant number, since it is smaller than the sum of its proper divisors (384917172).

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

288401628 is a wasteful number, since it uses less digits than its factorization.

288401628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13637 (or 13635 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 288401628 is about 16982.3917043507. The cubic root of 288401628 is about 660.6922855333.

The spelling of 288401628 in words is "two hundred eighty-eight million, four hundred one thousand, six hundred twenty-eight".