901989368 has 64 divisors (see below), whose sum is σ = 1970308800. Its totient is φ = 379146240.

The previous prime is 901989359. The next prime is 901989379. The reversal of 901989368 is 863989109.

It is a super-4 number, since 4×901989368⁴ (a number of 37 digits) contains 4444 as substring.

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, 682148 + ... + 683468.

It is an arithmetic number, because the mean of its divisors is an integer number (30786075).

Almost surely, 2^901989368 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 901989368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985154400).

901989368 is an abundant number, since it is smaller than the sum of its proper divisors (1068319432).

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

901989368 is a wasteful number, since it uses less digits than its factorization.

901989368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 901989368 is about 30033.1378314022. The cubic root of 901989368 is about 966.2002365441.

The spelling of 901989368 in words is "nine hundred one million, nine hundred eighty-nine thousand, three hundred sixty-eight".