1002405424 has 20 divisors (see below), whose sum is σ = 1943768944. Its totient is φ = 500787648.

The previous prime is 1002405353. The next prime is 1002405427. The reversal of 1002405424 is 4245042001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1002405395 and 1002405404.

It is not an unprimeable number, because it can be changed into a prime (1002405427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5532 + ... + 45115.

Almost surely, 2^1002405424 is an apocalyptic number.

It is an amenable number.

1002405424 is a deficient number, since it is larger than the sum of its proper divisors (941363520).

1002405424 is a wasteful number, since it uses less digits than its factorization.

1002405424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51892 (or 51886 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1002405424 is about 31660.7868506138. The cubic root of 1002405424 is about 1000.8011659617.

Adding to 1002405424 its reverse (4245042001), we get a palindrome (5247447425).

The spelling of 1002405424 in words is "one billion, two million, four hundred five thousand, four hundred twenty-four".