1290940 has 24 divisors (see below), whose sum is σ = 3098592. Its totient is φ = 442560.

The previous prime is 1290937. The next prime is 1290983. The reversal of 1290940 is 490921.

It is a congruent number.

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, 4471 + ... + 4750.

It is an arithmetic number, because the mean of its divisors is an integer number (129108).

2^1290940 is an apocalyptic number.

1290940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1290940 is an abundant number, since it is smaller than the sum of its proper divisors (1807652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1290940 is a wasteful number, since it uses less digits than its factorization.

1290940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237 (or 9235 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1290940 is about 1136.1954057291. The cubic root of 1290940 is about 108.8851580624.

The spelling of 1290940 in words is "one million, two hundred ninety thousand, nine hundred forty".