220715407 has 8 divisors (see below), whose sum is σ = 240890832. Its totient is φ = 200558400.

The previous prime is 220715399. The next prime is 220715441. The reversal of 220715407 is 704517022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220715407 - 2³ = 220715399 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 (220715497) 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 7 ways as a sum of consecutive naturals, for example, 36307 + ... + 41947.

It is an arithmetic number, because the mean of its divisors is an integer number (30111354).

Almost surely, 2^220715407 is an apocalyptic number.

220715407 is a deficient number, since it is larger than the sum of its proper divisors (20175425).

220715407 is a wasteful number, since it uses less digits than its factorization.

220715407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9209.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 220715407 is about 14856.4937653539. The cubic root of 220715407 is about 604.3347257646.

It can be divided in two parts, 220715 and 407, that added together give a palindrome (221122).

The spelling of 220715407 in words is "two hundred twenty million, seven hundred fifteen thousand, four hundred seven".