1253742 has 16 divisors (see below), whose sum is σ = 2865792. Its totient is φ = 358200.

The previous prime is 1253741. The next prime is 1253761. The reversal of 1253742 is 2473521.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14884 + ... + 14967.

It is an arithmetic number, because the mean of its divisors is an integer number (179112).

2^1253742 is an apocalyptic number.

1253742 is an abundant number, since it is smaller than the sum of its proper divisors (1612050).

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

1253742 is a wasteful number, since it uses less digits than its factorization.

1253742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29863.

The product of its digits is 1680, while the sum is 24.

The square root of 1253742 is about 1119.7062114680. The cubic root of 1253742 is about 107.8291193452.

The spelling of 1253742 in words is "one million, two hundred fifty-three thousand, seven hundred forty-two".