1253740 has 12 divisors (see below), whose sum is σ = 2632896. Its totient is φ = 501488.

The previous prime is 1253737. The next prime is 1253741. The reversal of 1253740 is 473521.

It is not an unprimeable number, because it can be changed into a prime (1253741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31324 + ... + 31363.

It is an arithmetic number, because the mean of its divisors is an integer number (219408).

2^1253740 is an apocalyptic number.

1253740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253740 is an abundant number, since it is smaller than the sum of its proper divisors (1379156).

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

1253740 is a wasteful number, since it uses less digits than its factorization.

1253740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62696 (or 62694 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 1253740 is about 1119.7053183762. The cubic root of 1253740 is about 107.8290620079.

The spelling of 1253740 in words is "one million, two hundred fifty-three thousand, seven hundred forty".