40003130 has 16 divisors (see below), whose sum is σ = 72644904. Its totient is φ = 15859200.

The previous prime is 40003111. The next prime is 40003133. The reversal of 40003130 is 3130004.

It can be written as a sum of positive squares in 4 ways, for example, as 13490929 + 26512201 = 3673^2 + 5149^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40003133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16571 + ... + 18830.

Almost surely, 2^40003130 is an apocalyptic number.

40003130 is a deficient number, since it is larger than the sum of its proper divisors (32641774).

40003130 is a wasteful number, since it uses less digits than its factorization.

40003130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35521.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 40003130 is about 6324.8027637232. The cubic root of 40003130 is about 342.0041094772.

Adding to 40003130 its reverse (3130004), we get a palindrome (43133134).

The spelling of 40003130 in words is "forty million, three thousand, one hundred thirty".