2045340401 has 8 divisors (see below), whose sum is σ = 2203337640. Its totient is φ = 1887437952.

The previous prime is 2045340377. The next prime is 2045340403. The reversal of 2045340401 is 1040435402.

It can be written as a sum of positive squares in 4 ways, for example, as 172528225 + 1872812176 = 13135^2 + 43276^2 .

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 2045340401 - 2²² = 2041146097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045340403) 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, 24815 + ... + 68603.

It is an arithmetic number, because the mean of its divisors is an integer number (275417205).

Almost surely, 2^2045340401 is an apocalyptic number.

It is an amenable number.

2045340401 is a deficient number, since it is larger than the sum of its proper divisors (157997239).

2045340401 is a wasteful number, since it uses less digits than its factorization.

2045340401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47395.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2045340401 is about 45225.4397546337. The cubic root of 2045340401 is about 1269.3708833566.

Adding to 2045340401 its reverse (1040435402), we get a palindrome (3085775803).

The spelling of 2045340401 in words is "two billion, forty-five million, three hundred forty thousand, four hundred one".