838842480 has 200 divisors, whose sum is σ = 3329807712. Its totient is φ = 191725056.

The previous prime is 838842451. The next prime is 838842541. The reversal of 838842480 is 84248838.

It is a happy number.

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 39 ways as a sum of consecutive naturals, for example, 36114 + ... + 54606.

Almost surely, 2^838842480 is an apocalyptic number.

838842480 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 838842480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1664903856).

838842480 is an abundant number, since it is smaller than the sum of its proper divisors (2490965232).

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

838842480 is a wasteful number, since it uses less digits than its factorization.

838842480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18525 (or 18510 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The square root of 838842480 is about 28962.7774911178. Note that the first 3 decimals coincide. The cubic root of 838842480 is about 943.1051980159.

The spelling of 838842480 in words is "eight hundred thirty-eight million, eight hundred forty-two thousand, four hundred eighty".