402201142 has 16 divisors (see below), whose sum is σ = 689929632. Its totient is φ = 172261440.

The previous prime is 402201131. The next prime is 402201157. The reversal of 402201142 is 241102204.

It is a super-2 number, since 2×402201142² = 323531517252208328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15748 + ... + 32440.

It is an arithmetic number, because the mean of its divisors is an integer number (43120602).

Almost surely, 2^402201142 is an apocalyptic number.

402201142 is a deficient number, since it is larger than the sum of its proper divisors (287728490).

402201142 is a wasteful number, since it uses less digits than its factorization.

402201142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18423.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 402201142 is about 20054.9530540463. The cubic root of 402201142 is about 738.1553409632.

Adding to 402201142 its reverse (241102204), we get a palindrome (643303346).

The spelling of 402201142 in words is "four hundred two million, two hundred one thousand, one hundred forty-two".