2045500402 has 12 divisors (see below), whose sum is σ = 3372540318. Its totient is φ = 929772800.

The previous prime is 2045500399. The next prime is 2045500403. The reversal of 2045500402 is 2040055402.

It can be written as a sum of positive squares in only one way, i.e., 1104299361 + 941201041 = 33231^2 + 30679^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2045500403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4225999 + ... + 4226482.

Almost surely, 2^2045500402 is an apocalyptic number.

2045500402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2045500402 is a deficient number, since it is larger than the sum of its proper divisors (1327039916).

2045500402 is a wasteful number, since it uses less digits than its factorization.

2045500402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8452505 (or 8452494 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2045500402 is about 45227.2086470081. The cubic root of 2045500402 is about 1269.4039822180.

Adding to 2045500402 its reverse (2040055402), we get a palindrome (4085555804).

The spelling of 2045500402 in words is "two billion, forty-five million, five hundred thousand, four hundred two".