840483840 has 176 divisors, whose sum is σ = 3072661632. Its totient is φ = 192086016.

The previous prime is 840483827. The next prime is 840483857. The reversal of 840483840 is 48384048.

It is a super-2 number, since 2×840483840² = 1412826170602291200, which contains 22 as substring.

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, 103612 + ... + 111428.

Almost surely, 2^840483840 is an apocalyptic number.

840483840 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 840483840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1536330816).

840483840 is an abundant number, since it is smaller than the sum of its proper divisors (2232177792).

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

840483840 is a wasteful number, since it uses less digits than its factorization.

840483840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852 (or 7834 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 39.

The square root of 840483840 is about 28991.0993237580. The cubic root of 840483840 is about 943.7199207407.

It can be divided in two parts, 840 and 483840, that multiplied together give a square (406425600 = 20160²).

The spelling of 840483840 in words is "eight hundred forty million, four hundred eighty-three thousand, eight hundred forty".