20295090 has 32 divisors (see below), whose sum is σ = 54120960. Its totient is φ = 5411952.

The previous prime is 20295083. The next prime is 20295091. The reversal of 20295090 is 9059202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20295091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37314 + ... + 37853.

It is an arithmetic number, because the mean of its divisors is an integer number (1691280).

Almost surely, 2^20295090 is an apocalyptic number.

20295090 is an abundant number, since it is smaller than the sum of its proper divisors (33825870).

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

20295090 is a wasteful number, since it uses less digits than its factorization.

20295090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75183 (or 75177 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 20295090 is about 4505.0072142007. The cubic root of 20295090 is about 272.7702450469.

The spelling of 20295090 in words is "twenty million, two hundred ninety-five thousand, ninety".