1253380 has 24 divisors (see below), whose sum is σ = 2724120. Its totient is φ = 483840.

The previous prime is 1253377. The next prime is 1253381. The reversal of 1253380 is 833521.

It can be written as a sum of positive squares in 4 ways, for example, as 188356 + 1065024 = 434^2 + 1032^2 .

It is a super-2 number, since 2×1253380² = 3141922848800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1253381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501 + ... + 1660.

It is an arithmetic number, because the mean of its divisors is an integer number (113505).

2^1253380 is an apocalyptic number.

1253380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253380 is an abundant number, since it is smaller than the sum of its proper divisors (1470740).

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

1253380 is a wasteful number, since it uses less digits than its factorization.

1253380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1253380 is about 1119.5445502525. The cubic root of 1253380 is about 107.8187403095.

It can be divided in two parts, 125 and 3380, that multiplied together give a square (422500 = 650²).

The spelling of 1253380 in words is "one million, two hundred fifty-three thousand, three hundred eighty".