402014424 has 192 divisors, whose sum is σ = 1241049600. Its totient is φ = 107982336.

The previous prime is 402014413. The next prime is 402014449. The reversal of 402014424 is 424410204.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 402014424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2407189 + ... + 2407355.

It is an arithmetic number, because the mean of its divisors is an integer number (6463800).

Almost surely, 2^402014424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402014424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620524800).

402014424 is an abundant number, since it is smaller than the sum of its proper divisors (839035176).

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

402014424 is a wasteful number, since it uses less digits than its factorization.

402014424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 402014424 is about 20050.2973544035. The cubic root of 402014424 is about 738.0410961171.

Adding to 402014424 its reverse (424410204), we get a palindrome (826424628).

The spelling of 402014424 in words is "four hundred two million, fourteen thousand, four hundred twenty-four".