1394290 has 8 divisors (see below), whose sum is σ = 2509740. Its totient is φ = 557712.

The previous prime is 1394273. The next prime is 1394293. The reversal of 1394290 is 924931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1252161 + 142129 = 1119^2 + 377^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1394293) 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, 69705 + ... + 69724.

2^1394290 is an apocalyptic number.

1394290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1394290 is a deficient number, since it is larger than the sum of its proper divisors (1115450).

1394290 is a wasteful number, since it uses less digits than its factorization.

1394290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139436.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1394290 is about 1180.8005758806. The cubic root of 1394290 is about 111.7165985453.

The spelling of 1394290 in words is "one million, three hundred ninety-four thousand, two hundred ninety".