63749424 has 80 divisors (see below), whose sum is σ = 174676320. Its totient is φ = 19998720.

The previous prime is 63749419. The next prime is 63749443. The reversal of 63749424 is 42494736.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56514 + ... + 57630.

It is an arithmetic number, because the mean of its divisors is an integer number (2183454).

Almost surely, 2^63749424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63749424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87338160).

63749424 is an abundant number, since it is smaller than the sum of its proper divisors (110926896).

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

63749424 is a wasteful number, since it uses less digits than its factorization.

63749424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1192 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 63749424 is about 7984.3236407350. The cubic root of 63749424 is about 399.4772838839.

The spelling of 63749424 in words is "sixty-three million, seven hundred forty-nine thousand, four hundred twenty-four".