220078031 has 8 divisors (see below), whose sum is σ = 222265344. Its totient is φ = 217901880.

The previous prime is 220077989. The next prime is 220078087. The reversal of 220078031 is 130870022.

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 220078031 - 2¹⁰ = 220077007 is a prime.

It is a super-2 number, since 2×220078031² = 96868679457673922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220077988 and 220078006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220078931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40010 + ... + 45176.

It is an arithmetic number, because the mean of its divisors is an integer number (27783168).

Almost surely, 2^220078031 is an apocalyptic number.

220078031 is a deficient number, since it is larger than the sum of its proper divisors (2187313).

220078031 is a wasteful number, since it uses less digits than its factorization.

220078031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5581.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 220078031 is about 14835.0271654622. The cubic root of 220078031 is about 603.7524377248.

The spelling of 220078031 in words is "two hundred twenty million, seventy-eight thousand, thirty-one".