1290492 has 60 divisors (see below), whose sum is σ = 3862320. Its totient is φ = 368064.

The previous prime is 1290491. The next prime is 1290503. The reversal of 1290492 is 2940921.

1290492 is nontrivially palindromic in base 8.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290491) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1984 + ... + 2552.

It is an arithmetic number, because the mean of its divisors is an integer number (64372).

2^1290492 is an apocalyptic number.

1290492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1290492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1931160).

1290492 is an abundant number, since it is smaller than the sum of its proper divisors (2571828).

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

1290492 is a wasteful number, since it uses less digits than its factorization.

1290492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1290492 is about 1135.9982394353. The cubic root of 1290492 is about 108.8725609898.

It can be divided in two parts, 12904 and 92, that added together give a square (12996 = 114²).

The spelling of 1290492 in words is "one million, two hundred ninety thousand, four hundred ninety-two".