40304205 has 12 divisors (see below), whose sum is σ = 69860700. Its totient is φ = 21495552.

The previous prime is 40304197. The next prime is 40304213. The reversal of 40304205 is 50240304.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40304197) and next prime (40304213).

It can be written as a sum of positive squares in 2 ways, for example, as 29354724 + 10949481 = 5418^2 + 3309^2 .

It is not a de Polignac number, because 40304205 - 2³ = 40304197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447780 + ... + 447869.

It is an arithmetic number, because the mean of its divisors is an integer number (5821725).

Almost surely, 2^40304205 is an apocalyptic number.

40304205 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40304205 is a deficient number, since it is larger than the sum of its proper divisors (29556495).

40304205 is a wasteful number, since it uses less digits than its factorization.

40304205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895660 (or 895657 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40304205 is about 6348.5592853812. The cubic root of 40304205 is about 342.8599728189.

Adding to 40304205 its reverse (50240304), we get a palindrome (90544509).

The spelling of 40304205 in words is "forty million, three hundred four thousand, two hundred five".