40852621 has 2 divisors, whose sum is σ = 40852622. Its totient is φ = 40852620.

The previous prime is 40852583. The next prime is 40852639. The reversal of 40852621 is 12625804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24157225 + 16695396 = 4915^2 + 4086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40852621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40852621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40852661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20426310 + 20426311.

It is an arithmetic number, because the mean of its divisors is an integer number (20426311).

Almost surely, 2^40852621 is an apocalyptic number.

It is an amenable number.

40852621 is a deficient number, since it is larger than the sum of its proper divisors (1).

40852621 is an equidigital number, since it uses as much as digits as its factorization.

40852621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 40852621 is about 6391.6055103550. The cubic root of 40852621 is about 344.4080614787.

The spelling of 40852621 in words is "forty million, eight hundred fifty-two thousand, six hundred twenty-one".