42799432 has 32 divisors (see below), whose sum is σ = 86902200. Its totient is φ = 19643904.

The previous prime is 42799429. The next prime is 42799433. The reversal of 42799432 is 23499724.

It can be written as a sum of positive squares in 4 ways, for example, as 42693156 + 106276 = 6534^2 + 326^2 .

It is not an unprimeable number, because it can be changed into a prime (42799433) 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, 19444 + ... + 21532.

Almost surely, 2^42799432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42799432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43451100).

42799432 is an abundant number, since it is smaller than the sum of its proper divisors (44102768).

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

42799432 is a wasteful number, since it uses less digits than its factorization.

42799432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305 (or 2301 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 42799432 is about 6542.1274827077. The cubic root of 42799432 is about 349.7942518634.

The spelling of 42799432 in words is "forty-two million, seven hundred ninety-nine thousand, four hundred thirty-two".