1390941 has 12 divisors (see below), whose sum is σ = 2063932. Its totient is φ = 902016.

The previous prime is 1390937. The next prime is 1390967. The reversal of 1390941 is 1490931.

It can be written as a sum of positive squares in 2 ways, for example, as 1265625 + 125316 = 1125^2 + 354^2 .

It is not a de Polignac number, because 1390941 - 2² = 1390937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1756 + ... + 2421.

2^1390941 is an apocalyptic number.

It is an amenable number.

1390941 is a deficient number, since it is larger than the sum of its proper divisors (672991).

1390941 is a wasteful number, since it uses less digits than its factorization.

1390941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220 (or 4217 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1390941 is about 1179.3816176285. The cubic root of 1390941 is about 111.6270813378.

The spelling of 1390941 in words is "one million, three hundred ninety thousand, nine hundred forty-one".