40030263 has 48 divisors (see below), whose sum is σ = 73143616. Its totient is φ = 20528640.

The previous prime is 40030247. The next prime is 40030271. The reversal of 40030263 is 36203004.

40030263 is a `hidden beast` number, since 400 + 3 + 0 + 263 = 666.

It is not a de Polignac number, because 40030263 - 2⁴ = 40030247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40030163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29643 + ... + 30963.

Almost surely, 2^40030263 is an apocalyptic number.

40030263 is a deficient number, since it is larger than the sum of its proper divisors (33113353).

40030263 is a wasteful number, since it uses less digits than its factorization.

40030263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40030263 is about 6326.9473682021. The cubic root of 40030263 is about 342.0814159302.

Adding to 40030263 its reverse (36203004), we get a palindrome (76233267).

The spelling of 40030263 in words is "forty million, thirty thousand, two hundred sixty-three".