42299490 has 32 divisors (see below), whose sum is σ = 102098880. Its totient is φ = 11215424.

The previous prime is 42299449. The next prime is 42299497. The reversal of 42299490 is 9499224.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42299497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432 + ... + 9308.

It is an arithmetic number, because the mean of its divisors is an integer number (3190590).

Almost surely, 2^42299490 is an apocalyptic number.

42299490 is an abundant number, since it is smaller than the sum of its proper divisors (59799390).

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

42299490 is a wasteful number, since it uses less digits than its factorization.

42299490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8066.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 42299490 is about 6503.8058089091. The cubic root of 42299490 is about 348.4269268176.

The spelling of 42299490 in words is "forty-two million, two hundred ninety-nine thousand, four hundred ninety".