40500045 has 12 divisors (see below), whose sum is σ = 70200156. Its totient is φ = 21600000.

The previous prime is 40500011. The next prime is 40500049. The reversal of 40500045 is 54000504.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24000201 + 16499844 = 4899^2 + 4062^2 .

It is not a de Polignac number, because 40500045 - 2⁷ = 40499917 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40500049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 449956 + ... + 450045.

It is an arithmetic number, because the mean of its divisors is an integer number (5850013).

Almost surely, 2^40500045 is an apocalyptic number.

40500045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40500045 is a deficient number, since it is larger than the sum of its proper divisors (29700111).

40500045 is a wasteful number, since it uses less digits than its factorization.

40500045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900012 (or 900009 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 40500045 is about 6363.9645662119. The cubic root of 40500045 is about 343.4143999564.

Adding to 40500045 its reverse (54000504), we get a palindrome (94500549).

The spelling of 40500045 in words is "forty million, five hundred thousand, forty-five".