63297040 has 40 divisors (see below), whose sum is σ = 151918848. Its totient is φ = 24501120.

The previous prime is 63297023. The next prime is 63297061. The reversal of 63297040 is 4079236.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 63296993 and 63297011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10282 + ... + 15241.

Almost surely, 2^63297040 is an apocalyptic number.

It is an amenable number.

63297040 is an abundant number, since it is smaller than the sum of its proper divisors (88621808).

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

63297040 is a wasteful number, since it uses less digits than its factorization.

63297040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25567 (or 25561 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 63297040 is about 7955.9436900974. The cubic root of 63297040 is about 398.5301051391.

The spelling of 63297040 in words is "sixty-three million, two hundred ninety-seven thousand, forty".