402143192742 has 32 divisors (see below), whose sum is σ = 851634635904. Its totient is φ = 126157046400.

The previous prime is 402143192741. The next prime is 402143192747. The reversal of 402143192742 is 247291341204.

It is a super-2 number, since 2×402143192742² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402143192742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402143192741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2690517 + ... + 2836047.

It is an arithmetic number, because the mean of its divisors is an integer number (26613582372).

Almost surely, 2^402143192742 is an apocalyptic number.

402143192742 is an abundant number, since it is smaller than the sum of its proper divisors (449491443162).

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

402143192742 is a wasteful number, since it uses less digits than its factorization.

402143192742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172644.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 402143192742 in words is "four hundred two billion, one hundred forty-three million, one hundred ninety-two thousand, seven hundred forty-two".