1379740 has 24 divisors (see below), whose sum is σ = 2923200. Its totient is φ = 547008.

The previous prime is 1379699. The next prime is 1379753. The reversal of 1379740 is 479731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2749 + ... + 3211.

It is an arithmetic number, because the mean of its divisors is an integer number (121800).

2^1379740 is an apocalyptic number.

1379740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1379740 is an abundant number, since it is smaller than the sum of its proper divisors (1543460).

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

1379740 is a wasteful number, since it uses less digits than its factorization.

1379740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 1379740 is about 1174.6233438852. The cubic root of 1379740 is about 111.3266357460.

Subtracting from 1379740 its reverse (479731), we obtain a palindrome (900009).

The spelling of 1379740 in words is "one million, three hundred seventy-nine thousand, seven hundred forty".