1039678420 has 96 divisors (see below), whose sum is σ = 2492985600. Its totient is φ = 360729600.

The previous prime is 1039678417. The next prime is 1039678421. The reversal of 1039678420 is 248769301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1039678421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 566905 + ... + 568735.

It is an arithmetic number, because the mean of its divisors is an integer number (25968600).

Almost surely, 2^1039678420 is an apocalyptic number.

1039678420 is a gapful number since it is divisible by the number (10) 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 1039678420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246492800).

1039678420 is an abundant number, since it is smaller than the sum of its proper divisors (1453307180).

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

1039678420 is a wasteful number, since it uses less digits than its factorization.

1039678420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1039678420 is about 32244.0447214676. The cubic root of 1039678420 is about 1013.0549661957.

The spelling of 1039678420 in words is "one billion, thirty-nine million, six hundred seventy-eight thousand, four hundred twenty".