1292990 has 16 divisors (see below), whose sum is σ = 2341440. Its totient is φ = 514080.

The previous prime is 1292989. The next prime is 1292999. The reversal of 1292990 is 992921.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120 + ... + 2660.

It is an arithmetic number, because the mean of its divisors is an integer number (146340).

2^1292990 is an apocalyptic number.

1292990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1292990 is a deficient number, since it is larger than the sum of its proper divisors (1048450).

1292990 is a wasteful number, since it uses less digits than its factorization.

1292990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1292990 is about 1137.0971814229. The cubic root of 1292990 is about 108.9427637668.

The spelling of 1292990 in words is "one million, two hundred ninety-two thousand, nine hundred ninety".