19660950 has 36 divisors (see below), whose sum is σ = 52823628. Its totient is φ = 5242800.

The previous prime is 19660943. The next prime is 19660951. The reversal of 19660950 is 5906691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19660951) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21396 + ... + 22295.

It is an arithmetic number, because the mean of its divisors is an integer number (1467323).

Almost surely, 2^19660950 is an apocalyptic number.

19660950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19660950 is an abundant number, since it is smaller than the sum of its proper divisors (33162678).

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

19660950 is a wasteful number, since it uses less digits than its factorization.

19660950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43709 (or 43701 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 19660950 is about 4434.0669819027. The cubic root of 19660950 is about 269.8991392821.

It can be divided in two parts, 19 and 660950, that added together give a square (660969 = 813²).

The spelling of 19660950 in words is "nineteen million, six hundred sixty thousand, nine hundred fifty".