42402424004220 has 48 divisors (see below), whose sum is σ = 135687756814848. Its totient is φ = 9691982629440.

The previous prime is 42402424004209. The next prime is 42402424004233. The reversal of 42402424004220 is 2240042420424.

It is a happy number.

It is a super-2 number, since 2×42402424004220² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50479075776 + ... + 50479076615.

It is an arithmetic number, because the mean of its divisors is an integer number (2826828266976).

Almost surely, 2^{42402424004220} is an apocalyptic number.

It is an amenable number.

42402424004220 is an abundant number, since it is smaller than the sum of its proper divisors (93285332810628).

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

42402424004220 is a wasteful number, since it uses less digits than its factorization.

42402424004220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100958152410 (or 100958152408 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 42402424004220 its reverse (2240042420424), we get a palindrome (44642466424644).

The spelling of 42402424004220 in words is "forty-two trillion, four hundred two billion, four hundred twenty-four million, four thousand, two hundred twenty".