63393444 has 27 divisors (see below), whose sum is σ = 160365387. Its totient is φ = 21115224.

The previous prime is 63393439. The next prime is 63393461. The reversal of 63393444 is 44439336.

It is a happy number.

The square root of 63393444 is 7962.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×63393444² = 8037457484362272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 63393399 and 63393408.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 47109 + ... + 48435.

Almost surely, 2^63393444 is an apocalyptic number.

63393444 is the 7962-nd square number.

It is an amenable number.

63393444 is an abundant number, since it is smaller than the sum of its proper divisors (96971943).

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

63393444 is a wasteful number, since it uses less digits than its factorization.

63393444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664 (or 1332 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The cubic root of 63393444 is about 398.7323284327.

Multiplying 63393444 by its sum of digits (36), we get a square (2282163984 = 47772²).

63393444 divided by its sum of digits (36) gives a square (1760929 = 1327²).

The spelling of 63393444 in words is "sixty-three million, three hundred ninety-three thousand, four hundred forty-four".