68052440 has 32 divisors (see below), whose sum is σ = 158060160. Its totient is φ = 26342400.

The previous prime is 68052437. The next prime is 68052461. The reversal of 68052440 is 4425086.

It is a super-2 number, since 2×68052440² = 9262269179907200, which contains 22 as substring.

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, 26201 + ... + 28680.

It is an arithmetic number, because the mean of its divisors is an integer number (4939380).

Almost surely, 2^68052440 is an apocalyptic number.

It is an amenable number.

68052440 is an abundant number, since it is smaller than the sum of its proper divisors (90007720).

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

68052440 is a wasteful number, since it uses less digits than its factorization.

68052440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54923 (or 54919 counting only the distinct ones).

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

The square root of 68052440 is about 8249.3902804995. The cubic root of 68052440 is about 408.2704057779.

The spelling of 68052440 in words is "sixty-eight million, fifty-two thousand, four hundred forty".