40612061 has 4 divisors (see below), whose sum is σ = 46413792. Its totient is φ = 34810332.

The previous prime is 40612049. The next prime is 40612067. The reversal of 40612061 is 16021604.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40612061 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 (40612067) 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, 2900855 + ... + 2900868.

It is an arithmetic number, because the mean of its divisors is an integer number (11603448).

Almost surely, 2^40612061 is an apocalyptic number.

It is an amenable number.

40612061 is a deficient number, since it is larger than the sum of its proper divisors (5801731).

40612061 is an equidigital number, since it uses as much as digits as its factorization.

40612061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801730.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 40612061 is about 6372.7592924886. The cubic root of 40612061 is about 343.7307164499.

Adding to 40612061 its reverse (16021604), we get a palindrome (56633665).

The spelling of 40612061 in words is "forty million, six hundred twelve thousand, sixty-one".