40330445 has 16 divisors (see below), whose sum is σ = 52704000. Its totient is φ = 29510208.

The previous prime is 40330441. The next prime is 40330457. The reversal of 40330445 is 54403304.

40330445 = 813² + 814² + ... + 869².

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40330445 - 2² = 40330441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40330445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40330441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4565 + ... + 10074.

It is an arithmetic number, because the mean of its divisors is an integer number (3294000).

Almost surely, 2^40330445 is an apocalyptic number.

It is an amenable number.

40330445 is a deficient number, since it is larger than the sum of its proper divisors (12373555).

40330445 is a wasteful number, since it uses less digits than its factorization.

40330445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14692.

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

The square root of 40330445 is about 6350.6255597382. The cubic root of 40330445 is about 342.9343628565.

Adding to 40330445 its reverse (54403304), we get a palindrome (94733749).

The spelling of 40330445 in words is "forty million, three hundred thirty thousand, four hundred forty-five".