20719150 has 12 divisors (see below), whose sum is σ = 38537712. Its totient is φ = 8287640.

The previous prime is 20719121. The next prime is 20719157. The reversal of 20719150 is 5191702.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20719157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 207142 + ... + 207241.

It is an arithmetic number, because the mean of its divisors is an integer number (3211476).

Almost surely, 2^20719150 is an apocalyptic number.

20719150 is a deficient number, since it is larger than the sum of its proper divisors (17818562).

20719150 is a wasteful number, since it uses less digits than its factorization.

20719150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414395 (or 414390 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 20719150 is about 4551.8293025991. The cubic root of 20719150 is about 274.6569827887.

The spelling of 20719150 in words is "twenty million, seven hundred nineteen thousand, one hundred fifty".