20374465 has 8 divisors (see below), whose sum is σ = 24666408. Its totient is φ = 16154880.

The previous prime is 20374463. The next prime is 20374477. The reversal of 20374465 is 56447302.

It can be written as a sum of positive squares in 4 ways, for example, as 339889 + 20034576 = 583^2 + 4476^2 .

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

It is not a de Polignac number, because 20374465 - 2¹ = 20374463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20374463) 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, 17466 + ... + 18595.

It is an arithmetic number, because the mean of its divisors is an integer number (3083301).

Almost surely, 2^20374465 is an apocalyptic number.

It is an amenable number.

20374465 is a deficient number, since it is larger than the sum of its proper divisors (4291943).

20374465 is a wasteful number, since it uses less digits than its factorization.

20374465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36179.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 20374465 is about 4513.8082591089. The cubic root of 20374465 is about 273.1253879769.

The spelling of 20374465 in words is "twenty million, three hundred seventy-four thousand, four hundred sixty-five".