1253490 has 64 divisors (see below), whose sum is σ = 3538944. Its totient is φ = 278208.

The previous prime is 1253479. The next prime is 1253513. The reversal of 1253490 is 943521.

1253490 = T₃₄₄ + T₃₄₅ + ... + T₃₆₃.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1253490.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9807 + ... + 9933.

It is an arithmetic number, because the mean of its divisors is an integer number (55296).

2^1253490 is an apocalyptic number.

1253490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769472).

1253490 is an abundant number, since it is smaller than the sum of its proper divisors (2285454).

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

1253490 is a wasteful number, since it uses less digits than its factorization.

1253490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1253490 is about 1119.5936762951. The cubic root of 1253490 is about 107.8218943715.

The spelling of 1253490 in words is "one million, two hundred fifty-three thousand, four hundred ninety".