63313340 has 12 divisors (see below), whose sum is σ = 132958056. Its totient is φ = 25325328.

The previous prime is 63313337. The next prime is 63313381. The reversal of 63313340 is 4331336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1582814 + ... + 1582853.

It is an arithmetic number, because the mean of its divisors is an integer number (11079838).

Almost surely, 2^63313340 is an apocalyptic number.

It is an amenable number.

63313340 is an abundant number, since it is smaller than the sum of its proper divisors (69644716).

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

63313340 is a wasteful number, since it uses less digits than its factorization.

63313340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165676 (or 3165674 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 63313340 is about 7956.9680155195. The cubic root of 63313340 is about 398.5643114947.

Adding to 63313340 its reverse (4331336), we get a palindrome (67644676).

The spelling of 63313340 in words is "sixty-three million, three hundred thirteen thousand, three hundred forty".