220825470 has 32 divisors (see below), whose sum is σ = 530385408. Its totient is φ = 58841888.

The previous prime is 220825469. The next prime is 220825471. The reversal of 220825470 is 74528022.

It is an interprime number because it is at equal distance from previous prime (220825469) and next prime (220825471).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220825471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60847 + ... + 64373.

It is an arithmetic number, because the mean of its divisors is an integer number (16574544).

Almost surely, 2^220825470 is an apocalyptic number.

220825470 is an abundant number, since it is smaller than the sum of its proper divisors (309559938).

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

220825470 is a wasteful number, since it uses less digits than its factorization.

220825470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5624.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 220825470 is about 14860.1975087816. The cubic root of 220825470 is about 604.4351625528.

The spelling of 220825470 in words is "two hundred twenty million, eight hundred twenty-five thousand, four hundred seventy".