42799724 has 12 divisors (see below), whose sum is σ = 81708648. Its totient is φ = 19454400.

The previous prime is 42799699. The next prime is 42799733.

42799724 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 972721 = 42799724 / (4 + 2 + 7 + 9 + 9 + 7 + 2 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486317 + ... + 486404.

It is an arithmetic number, because the mean of its divisors is an integer number (6809054).

Almost surely, 2^42799724 is an apocalyptic number.

42799724 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42799724 is a deficient number, since it is larger than the sum of its proper divisors (38908924).

42799724 is a wasteful number, since it uses less digits than its factorization.

42799724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972736 (or 972734 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 42799724 is about 6542.1497995689. The cubic root of 42799724 is about 349.7950473544.

The spelling of 42799724 in words is "forty-two million, seven hundred ninety-nine thousand, seven hundred twenty-four".