1845008949 has 16 divisors (see below), whose sum is σ = 2853406208. Its totient is φ = 1038554352.

The previous prime is 1845008947. The next prime is 1845008951. The reversal of 1845008949 is 9498005481.

It is an interprime number because it is at equal distance from previous prime (1845008947) and next prime (1845008951).

It is not a de Polignac number, because 1845008949 - 2¹ = 1845008947 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1845008898 and 1845008907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1845008941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654247 + ... + 657060.

It is an arithmetic number, because the mean of its divisors is an integer number (178337888).

Almost surely, 2^1845008949 is an apocalyptic number.

It is an amenable number.

1845008949 is a deficient number, since it is larger than the sum of its proper divisors (1008397259).

1845008949 is a wasteful number, since it uses less digits than its factorization.

1845008949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311384.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 1845008949 is about 42953.5673605814. The cubic root of 1845008949 is about 1226.4960644695.

The spelling of 1845008949 in words is "one billion, eight hundred forty-five million, eight thousand, nine hundred forty-nine".