60783440 has 40 divisors (see below), whose sum is σ = 142926120. Its totient is φ = 24037376.

The previous prime is 60783439. The next prime is 60783497. The reversal of 60783440 is 4438706.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8133904 + 52649536 = 2852^2 + 7256^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 60783397 and 60783406.

It is a congruent number.

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, 2852 + ... + 11388.

It is an arithmetic number, because the mean of its divisors is an integer number (3573153).

Almost surely, 2^60783440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60783440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71463060).

60783440 is an abundant number, since it is smaller than the sum of its proper divisors (82142680).

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

60783440 is a wasteful number, since it uses less digits than its factorization.

60783440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8639 (or 8633 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 60783440 is about 7796.3735159368. The cubic root of 60783440 is about 393.1833256062.

The spelling of 60783440 in words is "sixty million, seven hundred eighty-three thousand, four hundred forty".