40746161 has 4 divisors (see below), whose sum is σ = 43143012. Its totient is φ = 38349312.

The previous prime is 40746157. The next prime is 40746187. The reversal of 40746161 is 16164704.

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 38056561 + 2689600 = 6169^2 + 1640^2 .

It is a cyclic number.

It is not a de Polignac number, because 40746161 - 2² = 40746157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40743161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198400 + ... + 1198433.

It is an arithmetic number, because the mean of its divisors is an integer number (10785753).

Almost surely, 2^40746161 is an apocalyptic number.

It is an amenable number.

40746161 is a deficient number, since it is larger than the sum of its proper divisors (2396851).

40746161 is a wasteful number, since it uses less digits than its factorization.

40746161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396850.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 40746161 is about 6383.2719666328. The cubic root of 40746161 is about 344.1086308490.

The spelling of 40746161 in words is "forty million, seven hundred forty-six thousand, one hundred sixty-one".