402142022 has 16 divisors (see below), whose sum is σ = 619173072. Its totient is φ = 195770880.

The previous prime is 402142019. The next prime is 402142031. The reversal of 402142022 is 220241204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38198 + ... + 47574.

It is an arithmetic number, because the mean of its divisors is an integer number (38698317).

Almost surely, 2^402142022 is an apocalyptic number.

402142022 is a deficient number, since it is larger than the sum of its proper divisors (217031050).

402142022 is a wasteful number, since it uses less digits than its factorization.

402142022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9943.

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

The square root of 402142022 is about 20053.4790497809. The cubic root of 402142022 is about 738.1191717619.

Adding to 402142022 its reverse (220241204), we get a palindrome (622383226).

The spelling of 402142022 in words is "four hundred two million, one hundred forty-two thousand, twenty-two".