60439540 has 36 divisors (see below), whose sum is σ = 147647556. Its totient is φ = 20721792.

The previous prime is 60439523. The next prime is 60439543. The reversal of 60439540 is 4593406.

It can be written as a sum of positive squares in 2 ways, for example, as 45724644 + 14714896 = 6762^2 + 3836^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60439543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29857 + ... + 31816.

It is an arithmetic number, because the mean of its divisors is an integer number (4101321).

Almost surely, 2^60439540 is an apocalyptic number.

It is an amenable number.

60439540 is an abundant number, since it is smaller than the sum of its proper divisors (87208016).

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

60439540 is a wasteful number, since it uses less digits than its factorization.

60439540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61696 (or 61687 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 60439540 is about 7774.2871055808. The cubic root of 60439540 is about 392.4404063850.

The spelling of 60439540 in words is "sixty million, four hundred thirty-nine thousand, five hundred forty".