63491450 has 48 divisors (see below), whose sum is σ = 129634560. Its totient is φ = 22944000.

The previous prime is 63491429. The next prime is 63491453. The reversal of 63491450 is 5419436.

It is a super-3 number, since 3×63491450³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (63491453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132311 + ... + 132789.

It is an arithmetic number, because the mean of its divisors is an integer number (2700720).

Almost surely, 2^63491450 is an apocalyptic number.

63491450 is an abundant number, since it is smaller than the sum of its proper divisors (66143110).

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

63491450 is a wasteful number, since it uses less digits than its factorization.

63491450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 63491450 is about 7968.1522324815. The cubic root of 63491450 is about 398.9377021389.

The spelling of 63491450 in words is "sixty-three million, four hundred ninety-one thousand, four hundred fifty".