1253360 has 20 divisors (see below), whose sum is σ = 2914248. Its totient is φ = 501312.

The previous prime is 1253347. The next prime is 1253377. The reversal of 1253360 is 633521.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1253360² = 3141822579200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7754 + ... + 7913.

2^1253360 is an apocalyptic number.

1253360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253360 is an abundant number, since it is smaller than the sum of its proper divisors (1660888).

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

1253360 is a wasteful number, since it uses less digits than its factorization.

1253360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15680 (or 15674 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1253360 is about 1119.5356180131. The cubic root of 1253360 is about 107.8181668239.

Adding to 1253360 its reverse (633521), we get a palindrome (1886881).

The spelling of 1253360 in words is "one million, two hundred fifty-three thousand, three hundred sixty".