2045504040 has 64 divisors (see below), whose sum is σ = 6240542400. Its totient is φ = 536220672.

The previous prime is 2045504029. The next prime is 2045504051. The reversal of 2045504040 is 404055402.

It is an interprime number because it is at equal distance from previous prime (2045504029) and next prime (2045504051).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2045504040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137377 + ... + 151536.

It is an arithmetic number, because the mean of its divisors is an integer number (97508475).

Almost surely, 2^2045504040 is an apocalyptic number.

2045504040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045504040 is an abundant number, since it is smaller than the sum of its proper divisors (4195038360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2045504040 is a wasteful number, since it uses less digits than its factorization.

2045504040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288986 (or 288982 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2045504040 is about 45227.2488661426. The cubic root of 2045504040 is about 1269.4047347785.

Adding to 2045504040 its reverse (404055402), we get a palindrome (2449559442).

The spelling of 2045504040 in words is "two billion, forty-five million, five hundred four thousand, forty".