60000040 has 32 divisors (see below), whose sum is σ = 135292680. Its totient is φ = 23948032.

The previous prime is 60000023. The next prime is 60000047. The reversal of 60000040 is 4000006.

It can be written as a sum of positive squares in 4 ways, for example, as 32058244 + 27941796 = 5662^2 + 5286^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 59999981 and 60000026.

It is not an unprimeable number, because it can be changed into a prime (60000047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20934 + ... + 23626.

Almost surely, 2^60000040 is an apocalyptic number.

It is an amenable number.

60000040 is an abundant number, since it is smaller than the sum of its proper divisors (75292640).

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

60000040 is a wasteful number, since it uses less digits than its factorization.

60000040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 60000040 is about 7745.9692744033. The cubic root of 60000040 is about 391.4868511139.

Adding to 60000040 its reverse (4000006), we get a palindrome (64000046).

The spelling of 60000040 in words is "sixty million, forty", and thus it is an aban number, an eban number, and an uban number.