19927950 has 48 divisors (see below), whose sum is σ = 56484480. Its totient is φ = 4554720.

The previous prime is 19927939. The next prime is 19927969. The reversal of 19927950 is 5972991.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 8440 + ... + 10539.

It is an arithmetic number, because the mean of its divisors is an integer number (1176760).

Almost surely, 2^19927950 is an apocalyptic number.

19927950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19927950 is an abundant number, since it is smaller than the sum of its proper divisors (36556530).

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

19927950 is a wasteful number, since it uses less digits than its factorization.

19927950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19001 (or 18996 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 19927950 is about 4464.0732520872. The cubic root of 19927950 is about 271.1154131396.

The spelling of 19927950 in words is "nineteen million, nine hundred twenty-seven thousand, nine hundred fifty".