1478979252 has 36 divisors (see below), whose sum is σ = 3773480256. Its totient is φ = 488384400.

The previous prime is 1478979251. The next prime is 1478979269. The reversal of 1478979252 is 2529798741.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478979251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188124 + ... + 195827.

It is an arithmetic number, because the mean of its divisors is an integer number (104818896).

Almost surely, 2^1478979252 is an apocalyptic number.

1478979252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1478979252 is an abundant number, since it is smaller than the sum of its proper divisors (2294501004).

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

1478979252 is a wasteful number, since it uses less digits than its factorization.

1478979252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384068 (or 384063 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 1478979252 is about 38457.4992946759. The cubic root of 1478979252 is about 1139.3417899361.

The spelling of 1478979252 in words is "one billion, four hundred seventy-eight million, nine hundred seventy-nine thousand, two hundred fifty-two".