39483840 has 112 divisors (see below), whose sum is σ = 136794240. Its totient is φ = 9569280.

The previous prime is 39483823. The next prime is 39483869. The reversal of 39483840 is 4838493.

It is a super-2 number, since 2×39483840² = 3117947242291200, which contains 22 as substring.

It is a congruent number.

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, 8691 + ... + 12429.

Almost surely, 2^39483840 is an apocalyptic number.

39483840 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 39483840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68397120).

39483840 is an abundant number, since it is smaller than the sum of its proper divisors (97310400).

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

39483840 is a wasteful number, since it uses less digits than its factorization.

39483840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770 (or 3760 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 39483840 is about 6283.6167928988. The cubic root of 39483840 is about 340.5177808599.

The spelling of 39483840 in words is "thirty-nine million, four hundred eighty-three thousand, eight hundred forty".