40630455 has 24 divisors (see below), whose sum is σ = 74134320. Its totient is φ = 20528640.

The previous prime is 40630451. The next prime is 40630463. The reversal of 40630455 is 55403604.

It is not a de Polignac number, because 40630455 - 2² = 40630451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40630451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22906 + ... + 24615.

It is an arithmetic number, because the mean of its divisors is an integer number (3088930).

Almost surely, 2^40630455 is an apocalyptic number.

40630455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40630455 is a deficient number, since it is larger than the sum of its proper divisors (33503865).

40630455 is a wasteful number, since it uses less digits than its factorization.

40630455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47551 (or 47548 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 40630455 is about 6374.2023030337. The cubic root of 40630455 is about 343.7826027479.

The spelling of 40630455 in words is "forty million, six hundred thirty thousand, four hundred fifty-five".