1923020465 has 8 divisors (see below), whose sum is σ = 2351164968. Its totient is φ = 1509389440.

The previous prime is 1923020461. The next prime is 1923020497. The reversal of 1923020465 is 5640203291.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 303038464 + 1619982001 = 17408^2 + 40249^2 .

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

It is not a de Polignac number, because 1923020465 - 2² = 1923020461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1923020461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3628076 + ... + 3628605.

It is an arithmetic number, because the mean of its divisors is an integer number (293895621).

Almost surely, 2^1923020465 is an apocalyptic number.

It is an amenable number.

1923020465 is a deficient number, since it is larger than the sum of its proper divisors (428144503).

1923020465 is an equidigital number, since it uses as much as digits as its factorization.

1923020465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7256739.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1923020465 is about 43852.2572395082. The cubic root of 1923020465 is about 1243.5444169518.

The spelling of 1923020465 in words is "one billion, nine hundred twenty-three million, twenty thousand, four hundred sixty-five".