3942835440 has 160 divisors (see below), whose sum is σ = 12958980096. Its totient is φ = 989936640.

The previous prime is 3942835423. The next prime is 3942835459. The reversal of 3942835440 is 445382493.

It is a junction number, because it is equal to n+sod(n) for n = 3942835392 and 3942835401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268119 + ... + 282441.

Almost surely, 2^3942835440 is an apocalyptic number.

3942835440 is a gapful number since it is divisible by the number (30) 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 3942835440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6479490048).

3942835440 is an abundant number, since it is smaller than the sum of its proper divisors (9016144656).

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

3942835440 is a wasteful number, since it uses less digits than its factorization.

3942835440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14407 (or 14401 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 3942835440 is about 62792.0014014524. The cubic root of 3942835440 is about 1579.8028168176.

The spelling of 3942835440 in words is "three billion, nine hundred forty-two million, eight hundred thirty-five thousand, four hundred forty".