20495150 has 24 divisors (see below), whose sum is σ = 41054664. Its totient is φ = 7567200.

The previous prime is 20495119. The next prime is 20495159. The reversal of 20495150 is 5159402.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20495159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15116 + ... + 16415.

It is an arithmetic number, because the mean of its divisors is an integer number (1710611).

Almost surely, 2^20495150 is an apocalyptic number.

20495150 is an abundant number, since it is smaller than the sum of its proper divisors (20559514).

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

20495150 is a wasteful number, since it uses less digits than its factorization.

20495150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31556 (or 31551 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 20495150 is about 4527.1569444851. The cubic root of 20495150 is about 273.6635987345.

The spelling of 20495150 in words is "twenty million, four hundred ninety-five thousand, one hundred fifty".