18950646 has 48 divisors (see below), whose sum is σ = 44798400. Its totient is φ = 5297760.

The previous prime is 18950629. The next prime is 18950647. The reversal of 18950646 is 64605981.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18950647) 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, 10305 + ... + 12003.

It is an arithmetic number, because the mean of its divisors is an integer number (933300).

Almost surely, 2^18950646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18950646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22399200).

18950646 is an abundant number, since it is smaller than the sum of its proper divisors (25847754).

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

18950646 is a wasteful number, since it uses less digits than its factorization.

18950646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1728 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 18950646 is about 4353.2339702800. The cubic root of 18950646 is about 266.6089183979.

It can be divided in two parts, 1895064 and 6, that multiplied together give a square (11370384 = 3372²).

The spelling of 18950646 in words is "eighteen million, nine hundred fifty thousand, six hundred forty-six".