63442266 has 16 divisors (see below), whose sum is σ = 134348544. Its totient is φ = 19903424.

The previous prime is 63442261. The next prime is 63442271. The reversal of 63442266 is 66224436.

It is an interprime number because it is at equal distance from previous prime (63442261) and next prime (63442271).

It is a super-2 number, since 2×63442266² = 8049842230429512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63442261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310890 + ... + 311093.

It is an arithmetic number, because the mean of its divisors is an integer number (8396784).

Almost surely, 2^63442266 is an apocalyptic number.

63442266 is an abundant number, since it is smaller than the sum of its proper divisors (70906278).

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

63442266 is a wasteful number, since it uses less digits than its factorization.

63442266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622005.

The product of its digits is 41472, while the sum is 33.

The square root of 63442266 is about 7965.0653481312. The cubic root of 63442266 is about 398.8346624345.

The spelling of 63442266 in words is "sixty-three million, four hundred forty-two thousand, two hundred sixty-six".