652008040 has 32 divisors (see below), whose sum is σ = 1474636680. Its totient is φ = 259448832.

The previous prime is 652008023. The next prime is 652008053. The reversal of 652008040 is 40800256.

It can be written as a sum of positive squares in 4 ways, for example, as 488321604 + 163686436 = 22098^2 + 12794^2 .

It is a super-2 number, since 2×652008040² = 850228968449283200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 652007996 and 652008014.

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, 34509 + ... + 49948.

Almost surely, 2^652008040 is an apocalyptic number.

It is an amenable number.

652008040 is an abundant number, since it is smaller than the sum of its proper divisors (822628640).

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

652008040 is a wasteful number, since it uses less digits than its factorization.

652008040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84661 (or 84657 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 652008040 is about 25534.4481044725. The cubic root of 652008040 is about 867.1302102769.

Adding to 652008040 its reverse (40800256), we get a palindrome (692808296).

The spelling of 652008040 in words is "six hundred fifty-two million, eight thousand, forty".