58440661 has 4 divisors (see below), whose sum is σ = 59241292. Its totient is φ = 57640032.

The previous prime is 58440653. The next prime is 58440709. The reversal of 58440661 is 16604485.

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 23097636 + 35343025 = 4806^2 + 5945^2 .

It is a cyclic number.

It is not a de Polignac number, because 58440661 - 2³ = 58440653 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 (58440061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400206 + ... + 400351.

It is an arithmetic number, because the mean of its divisors is an integer number (14810323).

Almost surely, 2^58440661 is an apocalyptic number.

It is an amenable number.

58440661 is a deficient number, since it is larger than the sum of its proper divisors (800631).

58440661 is an equidigital number, since it uses as much as digits as its factorization.

58440661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800630.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 58440661 is about 7644.6491744226. The cubic root of 58440661 is about 388.0655046701.

The spelling of 58440661 in words is "fifty-eight million, four hundred forty thousand, six hundred sixty-one".