40621263 has 4 divisors (see below), whose sum is σ = 54161688. Its totient is φ = 27080840.

The previous prime is 40621249. The next prime is 40621271. The reversal of 40621263 is 36212604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40621263 - 2⁹ = 40620751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40621223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6770208 + ... + 6770213.

It is an arithmetic number, because the mean of its divisors is an integer number (13540422).

Almost surely, 2^40621263 is an apocalyptic number.

40621263 is a deficient number, since it is larger than the sum of its proper divisors (13540425).

40621263 is a wasteful number, since it uses less digits than its factorization.

40621263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13540424.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 40621263 is about 6373.4812308502. The cubic root of 40621263 is about 343.7566756610.

Adding to 40621263 its reverse (36212604), we get a palindrome (76833867).

The spelling of 40621263 in words is "forty million, six hundred twenty-one thousand, two hundred sixty-three".