63149438 has 8 divisors (see below), whose sum is σ = 103335480. Its totient is φ = 28704280.

The previous prime is 63149431. The next prime is 63149473. The reversal of 63149438 is 83494136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63149431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435193 + ... + 1435236.

It is an arithmetic number, because the mean of its divisors is an integer number (12916935).

Almost surely, 2^63149438 is an apocalyptic number.

63149438 is a deficient number, since it is larger than the sum of its proper divisors (40186042).

63149438 is a wasteful number, since it uses less digits than its factorization.

63149438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870442.

The product of its digits is 62208, while the sum is 38.

The square root of 63149438 is about 7946.6620665535. The cubic root of 63149438 is about 398.2200873586.

The spelling of 63149438 in words is "sixty-three million, one hundred forty-nine thousand, four hundred thirty-eight".