1378960172 has 12 divisors (see below), whose sum is σ = 2423538936. Its totient is φ = 686520480.

The previous prime is 1378960159. The next prime is 1378960223. The reversal of 1378960172 is 2710698731.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 738854 + ... + 740717.

It is an arithmetic number, because the mean of its divisors is an integer number (201961578).

Almost surely, 2^1378960172 is an apocalyptic number.

It is an amenable number.

1378960172 is a deficient number, since it is larger than the sum of its proper divisors (1044578764).

1378960172 is a wasteful number, since it uses less digits than its factorization.

1378960172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479808 (or 1479806 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 1378960172 is about 37134.3529901896. The cubic root of 1378960172 is about 1113.0565788325.

The spelling of 1378960172 in words is "one billion, three hundred seventy-eight million, nine hundred sixty thousand, one hundred seventy-two".