1578770428 has 12 divisors (see below), whose sum is σ = 2770064640. Its totient is φ = 787323392.

The previous prime is 1578770419. The next prime is 1578770429. The reversal of 1578770428 is 8240778751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1578770429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513733 + ... + 516796.

It is an arithmetic number, because the mean of its divisors is an integer number (230838720).

Almost surely, 2^1578770428 is an apocalyptic number.

It is an amenable number.

1578770428 is a deficient number, since it is larger than the sum of its proper divisors (1191294212).

1578770428 is a wasteful number, since it uses less digits than its factorization.

1578770428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030916 (or 1030914 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 49.

The square root of 1578770428 is about 39733.7441980994. The cubic root of 1578770428 is about 1164.4110755466.

The spelling of 1578770428 in words is "one billion, five hundred seventy-eight million, seven hundred seventy thousand, four hundred twenty-eight".