42799998 has 16 divisors (see below), whose sum is σ = 88552080. Its totient is φ = 13774656.

The previous prime is 42799949. The next prime is 42800039. The reversal of 42799998 is 89999724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122815 + ... + 123162.

It is an arithmetic number, because the mean of its divisors is an integer number (5534505).

Almost surely, 2^42799998 is an apocalyptic number.

42799998 is an abundant number, since it is smaller than the sum of its proper divisors (45752082).

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

42799998 is a wasteful number, since it uses less digits than its factorization.

42799998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246011.

The product of its digits is 2939328, while the sum is 57.

The square root of 42799998 is about 6542.1707406640. The cubic root of 42799998 is about 349.7957938050.

The spelling of 42799998 in words is "forty-two million, seven hundred ninety-nine thousand, nine hundred ninety-eight".