42449970 has 16 divisors (see below), whose sum is σ = 101880000. Its totient is φ = 11319984.

The previous prime is 42449963. The next prime is 42450007. The reversal of 42449970 is 7994424.

It is a happy number.

42449970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707470 + ... + 707529.

It is an arithmetic number, because the mean of its divisors is an integer number (6367500).

Almost surely, 2^42449970 is an apocalyptic number.

42449970 is an abundant number, since it is smaller than the sum of its proper divisors (59430030).

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

42449970 is a wasteful number, since it uses less digits than its factorization.

42449970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415009.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 42449970 is about 6515.3641494547. The cubic root of 42449970 is about 348.8396128961.

The spelling of 42449970 in words is "forty-two million, four hundred forty-nine thousand, nine hundred seventy".