63940245 has 8 divisors (see below), whose sum is σ = 102304416. Its totient is φ = 34101456.

The previous prime is 63940243. The next prime is 63940267. The reversal of 63940245 is 54204936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63940245 - 2¹ = 63940243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63940243) 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, 2131327 + ... + 2131356.

It is an arithmetic number, because the mean of its divisors is an integer number (12788052).

Almost surely, 2^63940245 is an apocalyptic number.

It is an amenable number.

63940245 is a deficient number, since it is larger than the sum of its proper divisors (38364171).

63940245 is a wasteful number, since it uses less digits than its factorization.

63940245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262691.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 63940245 is about 7996.2644403496. The cubic root of 63940245 is about 399.8754716524.

The spelling of 63940245 in words is "sixty-three million, nine hundred forty thousand, two hundred forty-five".