1423724 has 12 divisors (see below), whose sum is σ = 2544864. Its totient is φ = 696624.

The previous prime is 1423717. The next prime is 1423753. The reversal of 1423724 is 4273241.

It is a self number, because there is not a number n which added to its sum of digits gives 1423724.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3599 + ... + 3974.

It is an arithmetic number, because the mean of its divisors is an integer number (212072).

2^1423724 is an apocalyptic number.

It is an amenable number.

1423724 is a deficient number, since it is larger than the sum of its proper divisors (1121140).

1423724 is a wasteful number, since it uses less digits than its factorization.

1423724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7624 (or 7622 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 1423724 is about 1193.1990613473. The cubic root of 1423724 is about 112.4972575463.

Adding to 1423724 its reverse (4273241), we get a palindrome (5696965).

The spelling of 1423724 in words is "one million, four hundred twenty-three thousand, seven hundred twenty-four".