1439240472 has 96 divisors (see below), whose sum is σ = 4053504000. Its totient is φ = 460831680.

The previous prime is 1439240471. The next prime is 1439240477. The reversal of 1439240472 is 2740429341.

1439240472 is a `hidden beast` number, since 143 + 9 + 2 + 40 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1439240471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307929 + ... + 312567.

It is an arithmetic number, because the mean of its divisors is an integer number (42224000).

Almost surely, 2^1439240472 is an apocalyptic number.

1439240472 is a gapful number since it is divisible by the number (12) 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 1439240472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2026752000).

1439240472 is an abundant number, since it is smaller than the sum of its proper divisors (2614263528).

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

1439240472 is a wasteful number, since it uses less digits than its factorization.

1439240472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4821 (or 4814 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1439240472 is about 37937.3229419262. The cubic root of 1439240472 is about 1129.0446599590.

The spelling of 1439240472 in words is "one billion, four hundred thirty-nine million, two hundred forty thousand, four hundred seventy-two".