20249150 has 12 divisors (see below), whose sum is σ = 37663512. Its totient is φ = 8099640.

The previous prime is 20249147. The next prime is 20249153. The reversal of 20249150 is 5194202.

It is an interprime number because it is at equal distance from previous prime (20249147) and next prime (20249153).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20249153) 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, 202442 + ... + 202541.

It is an arithmetic number, because the mean of its divisors is an integer number (3138626).

Almost surely, 2^20249150 is an apocalyptic number.

20249150 is a deficient number, since it is larger than the sum of its proper divisors (17414362).

20249150 is a wasteful number, since it uses less digits than its factorization.

20249150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404995 (or 404990 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20249150 is about 4499.9055545645. The cubic root of 20249150 is about 272.5642751616.

The spelling of 20249150 in words is "twenty million, two hundred forty-nine thousand, one hundred fifty".