63928242 has 36 divisors (see below), whose sum is σ = 161127486. Its totient is φ = 18264960.

The previous prime is 63928223. The next prime is 63928261. The reversal of 63928242 is 24282936.

It is an interprime number because it is at equal distance from previous prime (63928223) and next prime (63928261).

It can be written as a sum of positive squares in only one way, i.e., 57471561 + 6456681 = 7581^2 + 2541^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63928197 and 63928206.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35359 + ... + 37122.

Almost surely, 2^63928242 is an apocalyptic number.

63928242 is an abundant number, since it is smaller than the sum of its proper divisors (97199244).

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

63928242 is a wasteful number, since it uses less digits than its factorization.

63928242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72503 (or 72493 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 63928242 is about 7995.5138671633. The cubic root of 63928242 is about 399.8504482593.

The spelling of 63928242 in words is "sixty-three million, nine hundred twenty-eight thousand, two hundred forty-two".