63444474 has 24 divisors (see below), whose sum is σ = 137914452. Its totient is φ = 21078720.

The previous prime is 63444467. The next prime is 63444481. The reversal of 63444474 is 47444436.

It is an interprime number because it is at equal distance from previous prime (63444467) and next prime (63444481).

It can be written as a sum of positive squares in 2 ways, for example, as 63441225 + 3249 = 7965^2 + 57^2 .

It is a super-2 number, since 2×63444474² = 8050402562273352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4 + ... + 11264.

Almost surely, 2^63444474 is an apocalyptic number.

63444474 is an abundant number, since it is smaller than the sum of its proper divisors (74469978).

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

63444474 is a wasteful number, since it uses less digits than its factorization.

63444474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11582 (or 11579 counting only the distinct ones).

The product of its digits is 129024, while the sum is 36.

The square root of 63444474 is about 7965.2039521911. The cubic root of 63444474 is about 398.8392893012.

The spelling of 63444474 in words is "sixty-three million, four hundred forty-four thousand, four hundred seventy-four".