42999924 has 96 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 12261760.

The previous prime is 42999923. The next prime is 42999947.

42999924 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42999923) 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, 179797 + ... + 180035.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 2^42999924 is an apocalyptic number.

42999924 is a gapful number since it is divisible by the number (44) 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 42999924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58060800).

42999924 is an abundant number, since it is smaller than the sum of its proper divisors (73121676).

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

42999924 is a wasteful number, since it uses less digits than its factorization.

42999924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 331 counting only the distinct ones).

The product of its digits is 419904, while the sum is 48.

The square root of 42999924 is about 6557.4327293538. The cubic root of 42999924 is about 350.3395996368.

The spelling of 42999924 in words is "forty-two million, nine hundred ninety-nine thousand, nine hundred twenty-four".