1380464528 has 20 divisors (see below), whose sum is σ = 2681537820. Its totient is φ = 688454784.

The previous prime is 1380464509. The next prime is 1380464537. The reversal of 1380464528 is 8254640831.

It can be written as a sum of positive squares in 2 ways, for example, as 127870864 + 1252593664 = 11308^2 + 35392^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104675 + ... + 117122.

It is an arithmetic number, because the mean of its divisors is an integer number (134076891).

Almost surely, 2^1380464528 is an apocalyptic number.

It is an amenable number.

1380464528 is a deficient number, since it is larger than the sum of its proper divisors (1301073292).

1380464528 is a wasteful number, since it uses less digits than its factorization.

1380464528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222194 (or 222188 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 1380464528 is about 37154.6030526502. The cubic root of 1380464528 is about 1113.4611892160.

The spelling of 1380464528 in words is "one billion, three hundred eighty million, four hundred sixty-four thousand, five hundred twenty-eight".