1578770432 has 42 divisors (see below), whose sum is σ = 3164556663. Its totient is φ = 787587072.

The previous prime is 1578770429. The next prime is 1578770441. The reversal of 1578770432 is 2340778751.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 789385216 + 789385216 = 28096^2 + 28096^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=28096.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3596069 + ... + 3596507.

Almost surely, 2^1578770432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1578770432

1578770432 is an abundant number, since it is smaller than the sum of its proper divisors (1585786231).

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

1578770432 is an frugal number, since it uses more digits than its factorization.

1578770432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 1578770432 is about 39733.7442484345. The cubic root of 1578770432 is about 1164.4110765300.

The spelling of 1578770432 in words is "one billion, five hundred seventy-eight million, seven hundred seventy thousand, four hundred thirty-two".