1396490 has 16 divisors (see below), whose sum is σ = 2549448. Its totient is φ = 550656.

The previous prime is 1396487. The next prime is 1396513. The reversal of 1396490 is 946931.

It can be written as a sum of positive squares in 4 ways, for example, as 1329409 + 67081 = 1153^2 + 259^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227 + ... + 1686.

2^1396490 is an apocalyptic number.

1396490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1396490 is a deficient number, since it is larger than the sum of its proper divisors (1152958).

1396490 is a wasteful number, since it uses less digits than its factorization.

1396490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1396490 is about 1181.7317800584. The cubic root of 1396490 is about 111.7753255348.

The spelling of 1396490 in words is "one million, three hundred ninety-six thousand, four hundred ninety".