40305130 has 16 divisors (see below), whose sum is σ = 76817160. Its totient is φ = 15173632.

The previous prime is 40305121. The next prime is 40305193. The reversal of 40305130 is 3150304.

It can be written as a sum of positive squares in 4 ways, for example, as 25918281 + 14386849 = 5091^2 + 3793^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118375 + ... + 118714.

Almost surely, 2^40305130 is an apocalyptic number.

40305130 is a deficient number, since it is larger than the sum of its proper divisors (36512030).

40305130 is a wasteful number, since it uses less digits than its factorization.

40305130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237113.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 40305130 is about 6348.6321361377. The cubic root of 40305130 is about 342.8625957301.

Adding to 40305130 its reverse (3150304), we get a palindrome (43455434).

The spelling of 40305130 in words is "forty million, three hundred five thousand, one hundred thirty".