63495840 has 48 divisors (see below), whose sum is σ = 200013408. Its totient is φ = 16932096.

The previous prime is 63495823. The next prime is 63495841. The reversal of 63495840 is 4859436.

63495840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (63495841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65662 + ... + 66621.

It is an arithmetic number, because the mean of its divisors is an integer number (4166946).

Almost surely, 2^63495840 is an apocalyptic number.

63495840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63495840 is an abundant number, since it is smaller than the sum of its proper divisors (136517568).

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

63495840 is a wasteful number, since it uses less digits than its factorization.

63495840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132301 (or 132293 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 63495840 is about 7968.4276993645. The cubic root of 63495840 is about 398.9468965326.

The spelling of 63495840 in words is "sixty-three million, four hundred ninety-five thousand, eight hundred forty".