402422424 has 16 divisors (see below), whose sum is σ = 1006056120. Its totient is φ = 134140800.

The previous prime is 402422417. The next prime is 402422443. The reversal of 402422424 is 424224204.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 16767601 = 402422424 / (4 + 0 + 2 + 4 + 2 + 2 + 4 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 402422394 and 402422403.

It is a congruent number.

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, 8383777 + ... + 8383824.

Almost surely, 2^402422424 is an apocalyptic number.

It is an amenable number.

402422424 is an abundant number, since it is smaller than the sum of its proper divisors (603633696).

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

402422424 is a wasteful number, since it uses less digits than its factorization.

402422424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16767610 (or 16767606 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 402422424 is about 20060.4691869358. The cubic root of 402422424 is about 738.2906882864.

Adding to 402422424 its reverse (424224204), we get a palindrome (826646628).

The spelling of 402422424 in words is "four hundred two million, four hundred twenty-two thousand, four hundred twenty-four".