250220628 has 72 divisors (see below), whose sum is σ = 724389120. Its totient is φ = 71340480.

The previous prime is 250220627. The next prime is 250220639. The reversal of 250220628 is 826022052.

It is a super-3 number, since 3×250220628³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250220627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180498 + ... + 181878.

It is an arithmetic number, because the mean of its divisors is an integer number (10060960).

Almost surely, 2^250220628 is an apocalyptic number.

250220628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250220628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362194560).

250220628 is an abundant number, since it is smaller than the sum of its proper divisors (474168492).

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

250220628 is a wasteful number, since it uses less digits than its factorization.

250220628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117 (or 2112 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 250220628 is about 15818.3636321840. The cubic root of 250220628 is about 630.1457863672.

The spelling of 250220628 in words is "two hundred fifty million, two hundred twenty thousand, six hundred twenty-eight".