2439974040 has 128 divisors (see below), whose sum is σ = 8635576320. Its totient is φ = 539712000.

The previous prime is 2439974039. The next prime is 2439974063. The reversal of 2439974040 is 404799342.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 2439973983 and 2439974001.

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, 20811 + ... + 72890.

It is an arithmetic number, because the mean of its divisors is an integer number (67465440).

Almost surely, 2^2439974040 is an apocalyptic number.

2439974040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2439974040 is an abundant number, since it is smaller than the sum of its proper divisors (6195602280).

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

2439974040 is a wasteful number, since it uses less digits than its factorization.

2439974040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93753 (or 93749 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 2439974040 is about 49396.0933677958. The cubic root of 2439974040 is about 1346.2583249839.

The spelling of 2439974040 in words is "two billion, four hundred thirty-nine million, nine hundred seventy-four thousand, forty".