52672840 has 64 divisors (see below), whose sum is σ = 131544000. Its totient is φ = 18819840.

The previous prime is 52672819. The next prime is 52672849. The reversal of 52672840 is 4827625.

It is a junction number, because it is equal to n+sod(n) for n = 52672796 and 52672805.

It is not an unprimeable number, because it can be changed into a prime (52672849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24946 + ... + 26974.

It is an arithmetic number, because the mean of its divisors is an integer number (2055375).

Almost surely, 2^52672840 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 52672840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65772000).

52672840 is an abundant number, since it is smaller than the sum of its proper divisors (78871160).

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

52672840 is a wasteful number, since it uses less digits than its factorization.

52672840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 52672840 is about 7257.6056657826. The cubic root of 52672840 is about 374.8540824882.

The spelling of 52672840 in words is "fifty-two million, six hundred seventy-two thousand, eight hundred forty".