42422236306240 has 56 divisors (see below), whose sum is σ = 115449085953792. Its totient is φ = 14544766732800.

The previous prime is 42422236306157. The next prime is 42422236306327. The reversal of 42422236306240 is 4260363222424.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×42422236306240² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 42422236306193 and 42422236306202.

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, 9469246936 + ... + 9469251415.

Almost surely, 2^{42422236306240} is an apocalyptic number.

42422236306240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42422236306240 is an abundant number, since it is smaller than the sum of its proper divisors (73026849647552).

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

42422236306240 is a wasteful number, since it uses less digits than its factorization.

42422236306240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18938498375 (or 18938498365 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 40.

Adding to 42422236306240 its reverse (4260363222424), we get a palindrome (46682599528664).

The spelling of 42422236306240 in words is "forty-two trillion, four hundred twenty-two billion, two hundred thirty-six million, three hundred six thousand, two hundred forty".