63940142 has 8 divisors (see below), whose sum is σ = 109611696. Its totient is φ = 27402912.

The previous prime is 63940141. The next prime is 63940153. The reversal of 63940142 is 24104936.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63940141) 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, 2283563 + ... + 2283590.

It is an arithmetic number, because the mean of its divisors is an integer number (13701462).

Almost surely, 2^63940142 is an apocalyptic number.

63940142 is a deficient number, since it is larger than the sum of its proper divisors (45671554).

63940142 is a wasteful number, since it uses less digits than its factorization.

63940142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567162.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 63940142 is about 7996.2579998397. The cubic root of 63940142 is about 399.8752569353.

The spelling of 63940142 in words is "sixty-three million, nine hundred forty thousand, one hundred forty-two".