220672634 has 16 divisors (see below), whose sum is σ = 407395968. Its totient is φ = 87298992.

The previous prime is 220672579. The next prime is 220672637. The reversal of 220672634 is 436276022.

It is a super-4 number, since 4×220672634⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 220672634.

It is not an unprimeable number, because it can be changed into a prime (220672637) 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, 606062 + ... + 606425.

It is an arithmetic number, because the mean of its divisors is an integer number (25462248).

Almost surely, 2^220672634 is an apocalyptic number.

220672634 is a deficient number, since it is larger than the sum of its proper divisors (186723334).

220672634 is a wasteful number, since it uses less digits than its factorization.

220672634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212509.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 220672634 is about 14855.0541567508. The cubic root of 220672634 is about 604.2956847214.

The spelling of 220672634 in words is "two hundred twenty million, six hundred seventy-two thousand, six hundred thirty-four".