220745436 has 48 divisors (see below), whose sum is σ = 524772864. Its totient is φ = 72205056.

The previous prime is 220745423. The next prime is 220745449. The reversal of 220745436 is 634547022.

220745436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220745423) and next prime (220745449).

It is a junction number, because it is equal to n+sod(n) for n = 220745397 and 220745406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371956 + ... + 372548.

It is an arithmetic number, because the mean of its divisors is an integer number (10932768).

Almost surely, 2^220745436 is an apocalyptic number.

It is an amenable number.

220745436 is an abundant number, since it is smaller than the sum of its proper divisors (304027428).

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

220745436 is a wasteful number, since it uses less digits than its factorization.

220745436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 220745436 is about 14857.5043664809. The cubic root of 220745436 is about 604.3621317120.

The spelling of 220745436 in words is "two hundred twenty million, seven hundred forty-five thousand, four hundred thirty-six".