52826240 has 64 divisors (see below), whose sum is σ = 128520000. Its totient is φ = 20757504.

The previous prime is 52826233. The next prime is 52826287. The reversal of 52826240 is 4262825.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×52826240² = 5581223265075200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37061 + ... + 38459.

It is an arithmetic number, because the mean of its divisors is an integer number (2008125).

Almost surely, 2^52826240 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 52826240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64260000).

52826240 is an abundant number, since it is smaller than the sum of its proper divisors (75693760).

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

52826240 is a wasteful number, since it uses less digits than its factorization.

52826240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 52826240 is about 7268.1662061348. The cubic root of 52826240 is about 375.2176277514.

The spelling of 52826240 in words is "fifty-two million, eight hundred twenty-six thousand, two hundred forty".