1290264 has 32 divisors (see below), whose sum is σ = 3315120. Its totient is φ = 418176.

The previous prime is 1290259. The next prime is 1290287. The reversal of 1290264 is 4620921.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

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, 162 + ... + 1614.

2^1290264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1290264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657560).

1290264 is an abundant number, since it is smaller than the sum of its proper divisors (2024856).

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

1290264 is a wasteful number, since it uses less digits than its factorization.

1290264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1290264 is about 1135.8978827342. The cubic root of 1290264 is about 108.8661488602.

The spelling of 1290264 in words is "one million, two hundred ninety thousand, two hundred sixty-four".