1249432 has 16 divisors (see below), whose sum is σ = 2480760. Its totient is φ = 587904.

The previous prime is 1249427. The next prime is 1249433. The reversal of 1249432 is 2349421.

It is a super-2 number, since 2×1249432² = 3122160645248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1249397 and 1249406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4458 + ... + 4729.

2^1249432 is an apocalyptic number.

It is an amenable number.

1249432 is a deficient number, since it is larger than the sum of its proper divisors (1231328).

1249432 is a wasteful number, since it uses less digits than its factorization.

1249432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9210 (or 9206 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 1249432 is about 1117.7799425647. The cubic root of 1249432 is about 107.7054157775.

It can be divided in two parts, 1249 and 432, that added together give a square (1681 = 41²).

The spelling of 1249432 in words is "one million, two hundred forty-nine thousand, four hundred thirty-two".