1249604 has 6 divisors (see below), whose sum is σ = 2186814. Its totient is φ = 624800.

The previous prime is 1249603. The next prime is 1249621. The reversal of 1249604 is 4069421.

It can be written as a sum of positive squares in only one way, i.e., 1188100 + 61504 = 1090^2 + 248^2 .

It is not an unprimeable number, because it can be changed into a prime (1249603) 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 as a sum of consecutive naturals, namely, 156197 + ... + 156204.

It is an arithmetic number, because the mean of its divisors is an integer number (364469).

2^1249604 is an apocalyptic number.

It is an amenable number.

1249604 is a deficient number, since it is larger than the sum of its proper divisors (937210).

1249604 is a wasteful number, since it uses less digits than its factorization.

1249604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312405 (or 312403 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1249604 is about 1117.8568781378. The cubic root of 1249604 is about 107.7103578850.

The spelling of 1249604 in words is "one million, two hundred forty-nine thousand, six hundred four".