60220409 has 4 divisors (see below), whose sum is σ = 63762804. Its totient is φ = 56678016.

The previous prime is 60220403. The next prime is 60220411. The reversal of 60220409 is 90402206.

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 47224384 + 12996025 = 6872^2 + 3605^2 .

It is a cyclic number.

It is not a de Polignac number, because 60220409 - 2⁴ = 60220393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (60220403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1771172 + ... + 1771205.

It is an arithmetic number, because the mean of its divisors is an integer number (15940701).

Almost surely, 2^60220409 is an apocalyptic number.

It is an amenable number.

60220409 is a deficient number, since it is larger than the sum of its proper divisors (3542395).

60220409 is a wasteful number, since it uses less digits than its factorization.

60220409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542394.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 60220409 is about 7760.1809901574. The cubic root of 60220409 is about 391.9655516896.

The spelling of 60220409 in words is "sixty million, two hundred twenty thousand, four hundred nine".