42799320 has 128 divisors (see below), whose sum is σ = 148953600. Its totient is φ = 10910592.

The previous prime is 42799303. The next prime is 42799321. The reversal of 42799320 is 2399724.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42799321) 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, 23979 + ... + 25701.

It is an arithmetic number, because the mean of its divisors is an integer number (1163700).

Almost surely, 2^42799320 is an apocalyptic number.

42799320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42799320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74476800).

42799320 is an abundant number, since it is smaller than the sum of its proper divisors (106154280).

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

42799320 is a wasteful number, since it uses less digits than its factorization.

42799320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766 (or 1756 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 42799320 is about 6542.1189227956. The cubic root of 42799320 is about 349.7939467426.

The spelling of 42799320 in words is "forty-two million, seven hundred ninety-nine thousand, three hundred twenty".