1442624 has 14 divisors (see below), whose sum is σ = 2862834. Its totient is φ = 721280.

The previous prime is 1442621. The next prime is 1442627. The reversal of 1442624 is 4262441.

It is an interprime number because it is at equal distance from previous prime (1442621) and next prime (1442627).

It can be written as a sum of positive squares in only one way, i.e., 1364224 + 78400 = 1168^2 + 280^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1442624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11207 + ... + 11334.

2^1442624 is an apocalyptic number.

It is an amenable number.

1442624 is a deficient number, since it is larger than the sum of its proper divisors (1420210).

1442624 is an equidigital number, since it uses as much as digits as its factorization.

1442624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22553 (or 22543 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 1442624 is about 1201.0928357125. The cubic root of 1442624 is about 112.9928729157.

The spelling of 1442624 in words is "one million, four hundred forty-two thousand, six hundred twenty-four".