42450421330 has 64 divisors (see below), whose sum is σ = 81392532480. Its totient is φ = 15913958400.

The previous prime is 42450421313. The next prime is 42450421337. The reversal of 42450421330 is 3312405424.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42450421337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1729081 + ... + 1753459.

It is an arithmetic number, because the mean of its divisors is an integer number (1271758320).

Almost surely, 2^42450421330 is an apocalyptic number.

42450421330 is a deficient number, since it is larger than the sum of its proper divisors (38942111150).

42450421330 is a wasteful number, since it uses less digits than its factorization.

42450421330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24595.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 42450421330 its reverse (3312405424), we get a palindrome (45762826754).

The spelling of 42450421330 in words is "forty-two billion, four hundred fifty million, four hundred twenty-one thousand, three hundred thirty".