20462649 has 8 divisors (see below), whose sum is σ = 27949152. Its totient is φ = 13308960.

The previous prime is 20462647. The next prime is 20462653. The reversal of 20462649 is 94626402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20462649 - 2¹ = 20462647 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20462647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83059 + ... + 83304.

It is an arithmetic number, because the mean of its divisors is an integer number (3493644).

Almost surely, 2^20462649 is an apocalyptic number.

It is an amenable number.

20462649 is a deficient number, since it is larger than the sum of its proper divisors (7486503).

20462649 is a wasteful number, since it uses less digits than its factorization.

20462649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166407.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 20462649 is about 4523.5659606112. The cubic root of 20462649 is about 273.5188645529.

The spelling of 20462649 in words is "twenty million, four hundred sixty-two thousand, six hundred forty-nine".