6398902428 has 24 divisors (see below), whose sum is σ = 14960469888. Its totient is φ = 2128724976.

The previous prime is 6398902409. The next prime is 6398902463. The reversal of 6398902428 is 8242098936.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524026 + ... + 536097.

It is an arithmetic number, because the mean of its divisors is an integer number (623352912).

Almost surely, 2^6398902428 is an apocalyptic number.

It is an amenable number.

6398902428 is an abundant number, since it is smaller than the sum of its proper divisors (8561567460).

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

6398902428 is a wasteful number, since it uses less digits than its factorization.

6398902428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060633 (or 1060631 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 6398902428 is about 79993.1398808673. The cubic root of 6398902428 is about 1856.5293924202.

The spelling of 6398902428 in words is "six billion, three hundred ninety-eight million, nine hundred two thousand, four hundred twenty-eight".