220673534 has 4 divisors (see below), whose sum is σ = 331010304. Its totient is φ = 110336766.

The previous prime is 220673533. The next prime is 220673591. The reversal of 220673534 is 435376022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435376022 = 2 ⋅217688011.

It is a self number, because there is not a number n which added to its sum of digits gives 220673534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220673533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55168382 + ... + 55168385.

It is an arithmetic number, because the mean of its divisors is an integer number (82752576).

Almost surely, 2^220673534 is an apocalyptic number.

220673534 is a deficient number, since it is larger than the sum of its proper divisors (110336770).

220673534 is a wasteful number, since it uses less digits than its factorization.

220673534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110336769.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 220673534 is about 14855.0844494402. The cubic root of 220673534 is about 604.2965062481.

The spelling of 220673534 in words is "two hundred twenty million, six hundred seventy-three thousand, five hundred thirty-four".