1249742 has 16 divisors (see below), whose sum is σ = 2050272. Its totient is φ = 567840.

The previous prime is 1249741. The next prime is 1249747. The reversal of 1249742 is 2479421.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249741) 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, 1508 + ... + 2184.

It is an arithmetic number, because the mean of its divisors is an integer number (128142).

2^1249742 is an apocalyptic number.

1249742 is a deficient number, since it is larger than the sum of its proper divisors (800530).

1249742 is a wasteful number, since it uses less digits than its factorization.

1249742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its digits is 4032, while the sum is 29.

The square root of 1249742 is about 1117.9186016880. The cubic root of 1249742 is about 107.7143227363.

It can be divided in two parts, 1249 and 742, that added together give a palindrome (1991).

The spelling of 1249742 in words is "one million, two hundred forty-nine thousand, seven hundred forty-two".