20465495 has 8 divisors (see below), whose sum is σ = 24595584. Its totient is φ = 16347744.

The previous prime is 20465491. The next prime is 20465509. The reversal of 20465495 is 59456402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20465495 - 2² = 20465491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20465491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082 + ... + 6488.

It is an arithmetic number, because the mean of its divisors is an integer number (3074448).

Almost surely, 2^20465495 is an apocalyptic number.

20465495 is a deficient number, since it is larger than the sum of its proper divisors (4130089).

20465495 is an equidigital number, since it uses as much as digits as its factorization.

20465495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 20465495 is about 4523.8805245055. The cubic root of 20465495 is about 273.5315445437.

Multiplying 20465495 by its sum of digits (35), we get a triangular number (716292325 = T₃₇₈₄₉).

The spelling of 20465495 in words is "twenty million, four hundred sixty-five thousand, four hundred ninety-five".