40233444 has 12 divisors (see below), whose sum is σ = 93878064. Its totient is φ = 13411144.

The previous prime is 40233409. The next prime is 40233449. The reversal of 40233444 is 44433204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×40233444² = 3237460032202272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40233449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676382 + ... + 1676405.

It is an arithmetic number, because the mean of its divisors is an integer number (7823172).

Almost surely, 2^40233444 is an apocalyptic number.

It is an amenable number.

40233444 is an abundant number, since it is smaller than the sum of its proper divisors (53644620).

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

40233444 is a wasteful number, since it uses less digits than its factorization.

40233444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352794 (or 3352792 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 40233444 is about 6342.9838404335. The cubic root of 40233444 is about 342.6592052927.

Adding to 40233444 its reverse (44433204), we get a palindrome (84666648).

The spelling of 40233444 in words is "forty million, two hundred thirty-three thousand, four hundred forty-four".