42402640422 has 32 divisors (see below), whose sum is σ = 91983929184. Its totient is φ = 12978329600.

The previous prime is 42402640421. The next prime is 42402640451. The reversal of 42402640422 is 22404620424.

It is a self number, because there is not a number n which added to its sum of digits gives 42402640422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42402640421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5065479 + ... + 5073842.

It is an arithmetic number, because the mean of its divisors is an integer number (2874497787).

Almost surely, 2^42402640422 is an apocalyptic number.

42402640422 is an abundant number, since it is smaller than the sum of its proper divisors (49581288762).

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

42402640422 is a wasteful number, since it uses less digits than its factorization.

42402640422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10139384.

The product of its (nonzero) digits is 24576, while the sum is 30.

The spelling of 42402640422 in words is "forty-two billion, four hundred two million, six hundred forty thousand, four hundred twenty-two".