1373990 has 8 divisors (see below), whose sum is σ = 2473200. Its totient is φ = 549592.

The previous prime is 1373989. The next prime is 1374007. The reversal of 1373990 is 993731.

It is a happy number.

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

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, 68690 + ... + 68709.

It is an arithmetic number, because the mean of its divisors is an integer number (309150).

2^1373990 is an apocalyptic number.

1373990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1373990 is a deficient number, since it is larger than the sum of its proper divisors (1099210).

1373990 is a wasteful number, since it uses less digits than its factorization.

1373990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137406.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 1373990 is about 1172.1731953939. The cubic root of 1373990 is about 111.1717709515.

The spelling of 1373990 in words is "one million, three hundred seventy-three thousand, nine hundred ninety".