1479142440 has 72 divisors (see below), whose sum is σ = 4809585690. Its totient is φ = 394243392.

The previous prime is 1479142433. The next prime is 1479142459. The reversal of 1479142440 is 442419741.

1479142440 is a `hidden beast` number, since 1 + 4 + 79 + 142 + 440 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1331228196 + 147914244 = 36486^2 + 12162^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a junction number, because it is equal to n+sod(n) for n = 1479142395 and 1479142404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 728707 + ... + 730733.

Almost surely, 2^1479142440 is an apocalyptic number.

1479142440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1479142440 is an abundant number, since it is smaller than the sum of its proper divisors (3330443250).

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

1479142440 is an equidigital number, since it uses as much as digits as its factorization.

1479142440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1479142440 is about 38459.6209029678. The cubic root of 1479142440 is about 1139.3836927259.

The spelling of 1479142440 in words is "one billion, four hundred seventy-nine million, one hundred forty-two thousand, four hundred forty".