40304045 has 8 divisors (see below), whose sum is σ = 48522240. Its totient is φ = 32138320.

The previous prime is 40304041. The next prime is 40304057. The reversal of 40304045 is 54040304.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40304045 - 2² = 40304041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40304041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11405 + ... + 14514.

It is an arithmetic number, because the mean of its divisors is an integer number (6065280).

Almost surely, 2^40304045 is an apocalyptic number.

It is an amenable number.

40304045 is a deficient number, since it is larger than the sum of its proper divisors (8218195).

40304045 is a wasteful number, since it uses less digits than its factorization.

40304045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26235.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40304045 is about 6348.5466840845. The cubic root of 40304045 is about 342.8595191221.

Adding to 40304045 its reverse (54040304), we get a palindrome (94344349).

The spelling of 40304045 in words is "forty million, three hundred four thousand, forty-five".