1379772 has 18 divisors (see below), whose sum is σ = 3487848. Its totient is φ = 459912.

The previous prime is 1379753. The next prime is 1379797. The reversal of 1379772 is 2779731.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 38327 = 1379772 / (1 + 3 + 7 + 9 + 7 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19128 + ... + 19199.

2^1379772 is an apocalyptic number.

1379772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1379772 is an abundant number, since it is smaller than the sum of its proper divisors (2108076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1379772 is a wasteful number, since it uses less digits than its factorization.

1379772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38337 (or 38332 counting only the distinct ones).

The product of its digits is 18522, while the sum is 36.

The square root of 1379772 is about 1174.6369651939. The cubic root of 1379772 is about 111.3274963972.

The spelling of 1379772 in words is "one million, three hundred seventy-nine thousand, seven hundred seventy-two".