1379090 has 8 divisors (see below), whose sum is σ = 2482380. Its totient is φ = 551632.

The previous prime is 1379089. The next prime is 1379099. The reversal of 1379090 is 909731.

It can be written as a sum of positive squares in 2 ways, for example, as 1324801 + 54289 = 1151^2 + 233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1379099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68945 + ... + 68964.

2^1379090 is an apocalyptic number.

1379090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1379090 is a deficient number, since it is larger than the sum of its proper divisors (1103290).

1379090 is a wasteful number, since it uses less digits than its factorization.

1379090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137916.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 1379090 is about 1174.3466268526. The cubic root of 1379090 is about 111.3091508866.

It can be divided in two parts, 13790 and 90, that multiplied together give a triangular number (1241100 = T₁₅₇₅).

The spelling of 1379090 in words is "one million, three hundred seventy-nine thousand, ninety".