1379904952 has 16 divisors (see below), whose sum is σ = 2589804000. Its totient is φ = 689290560.

The previous prime is 1379904949. The next prime is 1379904961. The reversal of 1379904952 is 2594099731.

It is a junction number, because it is equal to n+sod(n) for n = 1379904896 and 1379904905.

It is a congruent number.

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, 73824 + ... + 90607.

It is an arithmetic number, because the mean of its divisors is an integer number (161862750).

Almost surely, 2^1379904952 is an apocalyptic number.

It is an amenable number.

1379904952 is a deficient number, since it is larger than the sum of its proper divisors (1209899048).

1379904952 is a wasteful number, since it uses less digits than its factorization.

1379904952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165486 (or 165482 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 49.

The square root of 1379904952 is about 37147.0719169089. The cubic root of 1379904952 is about 1113.3107204542.

The spelling of 1379904952 in words is "one billion, three hundred seventy-nine million, nine hundred four thousand, nine hundred fifty-two".