1380511892 has 6 divisors (see below), whose sum is σ = 2415895818. Its totient is φ = 690255944.

The previous prime is 1380511889. The next prime is 1380511907. The reversal of 1380511892 is 2981150831.

It can be written as a sum of positive squares in only one way, i.e., 1059242116 + 321269776 = 32546^2 + 17924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172563983 + ... + 172563990.

It is an arithmetic number, because the mean of its divisors is an integer number (402649303).

Almost surely, 2^1380511892 is an apocalyptic number.

It is an amenable number.

1380511892 is a deficient number, since it is larger than the sum of its proper divisors (1035383926).

1380511892 is a wasteful number, since it uses less digits than its factorization.

1380511892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345127977 (or 345127975 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 1380511892 is about 37155.2404379248. The cubic root of 1380511892 is about 1113.4739234253.

The spelling of 1380511892 in words is "one billion, three hundred eighty million, five hundred eleven thousand, eight hundred ninety-two".