220406712 has 16 divisors (see below), whose sum is σ = 551016840. Its totient is φ = 73468896.

The previous prime is 220406687. The next prime is 220406737. The reversal of 220406712 is 217604022.

It is an interprime number because it is at equal distance from previous prime (220406687) and next prime (220406737).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 9183613 = 220406712 / (2 + 2 + 0 + 4 + 0 + 6 + 7 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4591783 + ... + 4591830.

Almost surely, 2^220406712 is an apocalyptic number.

It is an amenable number.

220406712 is an abundant number, since it is smaller than the sum of its proper divisors (330610128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220406712 is a wasteful number, since it uses less digits than its factorization.

220406712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9183622 (or 9183618 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 220406712 is about 14846.1009022571. The cubic root of 220406712 is about 604.0528512442.

The spelling of 220406712 in words is "two hundred twenty million, four hundred six thousand, seven hundred twelve".