40246861 has 4 divisors (see below), whose sum is σ = 41334652. Its totient is φ = 39159072.

The previous prime is 40246853. The next prime is 40246879. The reversal of 40246861 is 16864204.

40246861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22857961 + 17388900 = 4781^2 + 4170^2 .

It is a cyclic number.

It is not a de Polignac number, because 40246861 - 2³ = 40246853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40246061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543840 + ... + 543913.

It is an arithmetic number, because the mean of its divisors is an integer number (10333663).

Almost surely, 2^40246861 is an apocalyptic number.

It is an amenable number.

40246861 is a deficient number, since it is larger than the sum of its proper divisors (1087791).

40246861 is a wasteful number, since it uses less digits than its factorization.

40246861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087790.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40246861 is about 6344.0413775448. The cubic root of 40246861 is about 342.6972909179.

The spelling of 40246861 in words is "forty million, two hundred forty-six thousand, eight hundred sixty-one".