1379742 has 72 divisors (see below), whose sum is σ = 3648456. Its totient is φ = 344736.

The previous prime is 1379699. The next prime is 1379753. The reversal of 1379742 is 2479731.

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 35 ways as a sum of consecutive naturals, for example, 72609 + ... + 72627.

It is an arithmetic number, because the mean of its divisors is an integer number (50673).

2^1379742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1379742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1824228).

1379742 is an abundant number, since it is smaller than the sum of its proper divisors (2268714).

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

1379742 is a wasteful number, since it uses less digits than its factorization.

1379742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 44 counting only the distinct ones).

The product of its digits is 10584, while the sum is 33.

The square root of 1379742 is about 1174.6241952216. The cubic root of 1379742 is about 111.3266895370.

The spelling of 1379742 in words is "one million, three hundred seventy-nine thousand, seven hundred forty-two".