1390226 has 16 divisors (see below), whose sum is σ = 2280960. Its totient is φ = 632640.

The previous prime is 1390219. The next prime is 1390241. The reversal of 1390226 is 6220931.

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, 395 + ... + 1713.

It is an arithmetic number, because the mean of its divisors is an integer number (142560).

2^1390226 is an apocalyptic number.

1390226 is a deficient number, since it is larger than the sum of its proper divisors (890734).

1390226 is a wasteful number, since it uses less digits than its factorization.

1390226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1390226 is about 1179.0784537087. The cubic root of 1390226 is about 111.6079511128.

The spelling of 1390226 in words is "one million, three hundred ninety thousand, two hundred twenty-six".