1402424 has 8 divisors (see below), whose sum is σ = 2629560. Its totient is φ = 701208.

The previous prime is 1402421. The next prime is 1402439. The reversal of 1402424 is 4242041.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87644 + ... + 87659.

It is an arithmetic number, because the mean of its divisors is an integer number (328695).

2^1402424 is an apocalyptic number.

It is an amenable number.

1402424 is a deficient number, since it is larger than the sum of its proper divisors (1227136).

1402424 is a wasteful number, since it uses less digits than its factorization.

1402424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175309 (or 175305 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1402424 is about 1184.2398405728. The cubic root of 1402424 is about 111.9334213143.

Adding to 1402424 its reverse (4242041), we get a palindrome (5644465).

The spelling of 1402424 in words is "one million, four hundred two thousand, four hundred twenty-four".