63534340 has 12 divisors (see below), whose sum is σ = 133422156. Its totient is φ = 25413728.

The previous prime is 63534337. The next prime is 63534409. The reversal of 63534340 is 4343536.

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 29615364 = 5824^2 + 5442^2 .

It is a super-2 number, since 2×63534340² = 8073224718471200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63534299 and 63534308.

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, 1588339 + ... + 1588378.

It is an arithmetic number, because the mean of its divisors is an integer number (11118513).

Almost surely, 2^63534340 is an apocalyptic number.

It is an amenable number.

63534340 is an abundant number, since it is smaller than the sum of its proper divisors (69887816).

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

63534340 is a wasteful number, since it uses less digits than its factorization.

63534340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176726 (or 3176724 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 63534340 is about 7970.8431172618. The cubic root of 63534340 is about 399.0275125866.

Adding to 63534340 its reverse (4343536), we get a palindrome (67877876).

The spelling of 63534340 in words is "sixty-three million, five hundred thirty-four thousand, three hundred forty".