1376990 has 8 divisors (see below), whose sum is σ = 2478600. Its totient is φ = 550792.

The previous prime is 1376981. The next prime is 1377023. The reversal of 1376990 is 996731.

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

It is a super-2 number, since 2×1376990² = 3792202920200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1376990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68840 + ... + 68859.

It is an arithmetic number, because the mean of its divisors is an integer number (309825).

2^1376990 is an apocalyptic number.

1376990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1376990 is a deficient number, since it is larger than the sum of its proper divisors (1101610).

1376990 is a wasteful number, since it uses less digits than its factorization.

1376990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137706.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 1376990 is about 1173.4521720121. The cubic root of 1376990 is about 111.2526237651.

The spelling of 1376990 in words is "one million, three hundred seventy-six thousand, nine hundred ninety".