42023344 has 40 divisors (see below), whose sum is σ = 89650512. Its totient is φ = 18923520.

The previous prime is 42023309. The next prime is 42023347. The reversal of 42023344 is 44332024.

It is a super-2 number, since 2×42023344² = 3531922881884672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (42023347) 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, 18832 + ... + 20944.

Almost surely, 2^42023344 is an apocalyptic number.

42023344 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 42023344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44825256).

42023344 is an abundant number, since it is smaller than the sum of its proper divisors (47627168).

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

42023344 is a wasteful number, since it uses less digits than its factorization.

42023344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2239 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 42023344 is about 6482.5414769209. The cubic root of 42023344 is about 347.6670528514.

Adding to 42023344 its reverse (44332024), we get a palindrome (86355368).

The spelling of 42023344 in words is "forty-two million, twenty-three thousand, three hundred forty-four".