63940234 has 8 divisors (see below), whose sum is σ = 95948100. Its totient is φ = 31957536.

The previous prime is 63940231. The next prime is 63940243. The reversal of 63940234 is 43204936.

It can be written as a sum of positive squares in 2 ways, for example, as 56295009 + 7645225 = 7503^2 + 2765^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 63940196 and 63940205.

It is not an unprimeable number, because it can be changed into a prime (63940231) 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, 2542 + ... + 11590.

Almost surely, 2^63940234 is an apocalyptic number.

63940234 is a deficient number, since it is larger than the sum of its proper divisors (32007866).

63940234 is a wasteful number, since it uses less digits than its factorization.

63940234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12584.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 63940234 is about 7996.2637525284. The cubic root of 63940234 is about 399.8754487215.

The spelling of 63940234 in words is "sixty-three million, nine hundred forty thousand, two hundred thirty-four".