63040494 has 64 divisors (see below), whose sum is σ = 142813440. Its totient is φ = 18385920.

The previous prime is 63040459. The next prime is 63040507. The reversal of 63040494 is 49404036.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 275172 + ... + 275400.

It is an arithmetic number, because the mean of its divisors is an integer number (2231460).

Almost surely, 2^63040494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63040494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71406720).

63040494 is an abundant number, since it is smaller than the sum of its proper divisors (79772946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63040494 is a wasteful number, since it uses less digits than its factorization.

63040494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 63040494 is about 7939.8044056513. The cubic root of 63040494 is about 397.9909554101.

The spelling of 63040494 in words is "sixty-three million, forty thousand, four hundred ninety-four".