63491442 has 32 divisors (see below), whose sum is σ = 145539072. Its totient is φ = 18088464.

The previous prime is 63491429. The next prime is 63491453. The reversal of 63491442 is 24419436.

63491442 is nontrivially palindromic in base 13.

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, 14113 + ... + 18059.

It is an arithmetic number, because the mean of its divisors is an integer number (4548096).

Almost surely, 2^63491442 is an apocalyptic number.

63491442 is an abundant number, since it is smaller than the sum of its proper divisors (82047630).

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

63491442 is a wasteful number, since it uses less digits than its factorization.

63491442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342.

The product of its digits is 20736, while the sum is 33.

The square root of 63491442 is about 7968.1517304830. The cubic root of 63491442 is about 398.9376853834.

The spelling of 63491442 in words is "sixty-three million, four hundred ninety-one thousand, four hundred forty-two".