1242504 has 24 divisors (see below), whose sum is σ = 3365310. Its totient is φ = 414144.

The previous prime is 1242503. The next prime is 1242517. The reversal of 1242504 is 4052421.

It can be written as a sum of positive squares in only one way, i.e., 1232100 + 10404 = 1110^2 + 102^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1242503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8557 + ... + 8700.

2^1242504 is an apocalyptic number.

It is an amenable number.

1242504 is an abundant number, since it is smaller than the sum of its proper divisors (2122806).

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

1242504 is a wasteful number, since it uses less digits than its factorization.

1242504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17269 (or 17262 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1242504 is about 1114.6766347242. The cubic root of 1242504 is about 107.5059740686.

Adding to 1242504 its reverse (4052421), we get a palindrome (5294925).

It can be divided in two parts, 124 and 2504, that added together give a triangular number (2628 = T₇₂).

The spelling of 1242504 in words is "one million, two hundred forty-two thousand, five hundred four".