60999440 has 40 divisors (see below), whose sum is σ = 142490880. Its totient is φ = 24285056.

The previous prime is 60999397. The next prime is 60999461. The reversal of 60999440 is 4499906.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16481 + ... + 19839.

It is an arithmetic number, because the mean of its divisors is an integer number (3562272).

Almost surely, 2^60999440 is an apocalyptic number.

It is an amenable number.

60999440 is an abundant number, since it is smaller than the sum of its proper divisors (81491440).

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

60999440 is a wasteful number, since it uses less digits than its factorization.

60999440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3599 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 60999440 is about 7810.2138254980. The cubic root of 60999440 is about 393.6485136954.

The spelling of 60999440 in words is "sixty million, nine hundred ninety-nine thousand, four hundred forty".