402022430 has 8 divisors (see below), whose sum is σ = 723640392. Its totient is φ = 160808968.

The previous prime is 402022429. The next prime is 402022441. The reversal of 402022430 is 34220204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 402022399 and 402022408.

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, 20101112 + ... + 20101131.

It is an arithmetic number, because the mean of its divisors is an integer number (90455049).

Almost surely, 2^402022430 is an apocalyptic number.

402022430 is a deficient number, since it is larger than the sum of its proper divisors (321617962).

402022430 is a wasteful number, since it uses less digits than its factorization.

402022430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40202250.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 402022430 is about 20050.4970013214. The cubic root of 402022430 is about 738.0459953756.

Adding to 402022430 its reverse (34220204), we get a palindrome (436242634).

The spelling of 402022430 in words is "four hundred two million, twenty-two thousand, four hundred thirty".