938265840 has 240 divisors, whose sum is σ = 3288170496. Its totient is φ = 239500800.

The previous prime is 938265821. The next prime is 938265851. The reversal of 938265840 is 48562839.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2834475 + ... + 2834805.

Almost surely, 2^938265840 is an apocalyptic number.

938265840 is a gapful number since it is divisible by the number (90) 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 938265840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644085248).

938265840 is an abundant number, since it is smaller than the sum of its proper divisors (2349904656).

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

938265840 is a wasteful number, since it uses less digits than its factorization.

938265840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 938265840 is about 30631.1253466143. The cubic root of 938265840 is about 978.9833410664.

The spelling of 938265840 in words is "nine hundred thirty-eight million, two hundred sixty-five thousand, eight hundred forty".