40052757 has 8 divisors (see below), whose sum is σ = 53576640. Its totient is φ = 26615360.

The previous prime is 40052723. The next prime is 40052767. The reversal of 40052757 is 75725004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40052757 - 2¹⁶ = 39987221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40052717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20532 + ... + 22397.

It is an arithmetic number, because the mean of its divisors is an integer number (6697080).

Almost surely, 2^40052757 is an apocalyptic number.

It is an amenable number.

40052757 is a deficient number, since it is larger than the sum of its proper divisors (13523883).

40052757 is a wasteful number, since it uses less digits than its factorization.

40052757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43243.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 40052757 is about 6328.7247530604. The cubic root of 40052757 is about 342.1454786163.

The spelling of 40052757 in words is "forty million, fifty-two thousand, seven hundred fifty-seven".