40530344 has 16 divisors (see below), whose sum is σ = 79994400. Its totient is φ = 19198512.

The previous prime is 40530341. The next prime is 40530353. The reversal of 40530344 is 44303504.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40530341) 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, 133172 + ... + 133475.

It is an arithmetic number, because the mean of its divisors is an integer number (4999650).

Almost surely, 2^40530344 is an apocalyptic number.

It is an amenable number.

40530344 is a deficient number, since it is larger than the sum of its proper divisors (39464056).

40530344 is a wasteful number, since it uses less digits than its factorization.

40530344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266672 (or 266668 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 40530344 is about 6366.3446340895. The cubic root of 40530344 is about 343.5000173034.

Adding to 40530344 its reverse (44303504), we get a palindrome (84833848).

The spelling of 40530344 in words is "forty million, five hundred thirty thousand, three hundred forty-four".