402622142 has 16 divisors (see below), whose sum is σ = 651714000. Its totient is φ = 185447232.

The previous prime is 402622133. The next prime is 402622147. The reversal of 402622142 is 241226204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402622147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2543 + ... + 28490.

It is an arithmetic number, because the mean of its divisors is an integer number (40732125).

Almost surely, 2^402622142 is an apocalyptic number.

402622142 is a deficient number, since it is larger than the sum of its proper divisors (249091858).

402622142 is a wasteful number, since it uses less digits than its factorization.

402622142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31547.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 402622142 is about 20065.4464689924. The cubic root of 402622142 is about 738.4128033782.

Adding to 402622142 its reverse (241226204), we get a palindrome (643848346).

The spelling of 402622142 in words is "four hundred two million, six hundred twenty-two thousand, one hundred forty-two".