52371440 has 40 divisors (see below), whose sum is σ = 132835248. Its totient is φ = 19043840.

The previous prime is 52371343. The next prime is 52371461. The reversal of 52371440 is 4417325.

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

It is a zygodrome in base 2.

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, 28877 + ... + 30636.

Almost surely, 2^52371440 is an apocalyptic number.

It is an amenable number.

52371440 is an abundant number, since it is smaller than the sum of its proper divisors (80463808).

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

52371440 is a wasteful number, since it uses less digits than its factorization.

52371440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59537 (or 59531 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 52371440 is about 7236.8114525667. The cubic root of 52371440 is about 374.1377284500.

Adding to 52371440 its reverse (4417325), we get a palindrome (56788765).

The spelling of 52371440 in words is "fifty-two million, three hundred seventy-one thousand, four hundred forty".