18950260 has 72 divisors (see below), whose sum is σ = 47200104. Its totient is φ = 6370560.

The previous prime is 18950237. The next prime is 18950273. The reversal of 18950260 is 6205981.

It can be written as a sum of positive squares in 4 ways, for example, as 1192464 + 17757796 = 1092^2 + 4214^2 .

It is a super-2 number, since 2×18950260² = 718224708135200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59622 + ... + 59938.

It is an arithmetic number, because the mean of its divisors is an integer number (655557).

Almost surely, 2^18950260 is an apocalyptic number.

18950260 is a gapful number since it is divisible by the number (10) 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 18950260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23600052).

18950260 is an abundant number, since it is smaller than the sum of its proper divisors (28249844).

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

18950260 is a wasteful number, since it uses less digits than its factorization.

18950260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 18950260 is about 4353.1896351985. The cubic root of 18950260 is about 266.6071082267.

The spelling of 18950260 in words is "eighteen million, nine hundred fifty thousand, two hundred sixty".