42219930490 has 16 divisors (see below), whose sum is σ = 76112266248. Its totient is φ = 16862107456.

The previous prime is 42219930479. The next prime is 42219930497. The reversal of 42219930490 is 9403991224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17721733129 + 24498197361 = 133123^2 + 156519^2 .

It is not an unprimeable number, because it can be changed into a prime (42219930497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3226237 + ... + 3239296.

Almost surely, 2^42219930490 is an apocalyptic number.

42219930490 is a deficient number, since it is larger than the sum of its proper divisors (33892335758).

42219930490 is a wasteful number, since it uses less digits than its factorization.

42219930490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6466193.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 42219930490 in words is "forty-two billion, two hundred nineteen million, nine hundred thirty thousand, four hundred ninety".