1379970 has 64 divisors (see below), whose sum is σ = 3888000. Its totient is φ = 347328.

The previous prime is 1379969. The next prime is 1379981. The reversal of 1379970 is 799731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4996 + ... + 5264.

It is an arithmetic number, because the mean of its divisors is an integer number (60750).

2^1379970 is an apocalyptic number.

1379970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1379970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944000).

1379970 is an abundant number, since it is smaller than the sum of its proper divisors (2508030).

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

1379970 is a wasteful number, since it uses less digits than its factorization.

1379970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 1379970 is about 1174.7212435297. The cubic root of 1379970 is about 111.3328213808.

The spelling of 1379970 in words is "one million, three hundred seventy-nine thousand, nine hundred seventy".