838997280 has 144 divisors (see below), whose sum is σ = 3123417024. Its totient is φ = 203389440.

The previous prime is 838997251. The next prime is 838997303. The reversal of 838997280 is 82799838.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10644 + ... + 42323.

It is an arithmetic number, because the mean of its divisors is an integer number (21690396).

Almost surely, 2^838997280 is an apocalyptic number.

838997280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 838997280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561708512).

838997280 is an abundant number, since it is smaller than the sum of its proper divisors (2284419744).

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

838997280 is a wasteful number, since it uses less digits than its factorization.

838997280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52999 (or 52988 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 838997280 is about 28965.4497634682. The cubic root of 838997280 is about 943.1632079954.

The spelling of 838997280 in words is "eight hundred thirty-eight million, nine hundred ninety-seven thousand, two hundred eighty".