4249252845 has 32 divisors (see below), whose sum is σ = 7714967040. Its totient is φ = 2218046400.

The previous prime is 4249252837. The next prime is 4249252859. The reversal of 4249252845 is 5482529424.

4249252845 is a `hidden beast` number, since 42 + 49 + 2 + 528 + 45 = 666.

It is not a de Polignac number, because 4249252845 - 2³ = 4249252837 is a prime.

It is a super-2 number, since 2×4249252845² = 36112299481481188050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4249252845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328506 + ... + 341195.

It is an arithmetic number, because the mean of its divisors is an integer number (241092720).

Almost surely, 2^4249252845 is an apocalyptic number.

4249252845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4249252845 is a deficient number, since it is larger than the sum of its proper divisors (3465714195).

4249252845 is a wasteful number, since it uses less digits than its factorization.

4249252845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669762 (or 669756 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The square root of 4249252845 is about 65186.2933828884. The cubic root of 4249252845 is about 1619.7109738148.

The spelling of 4249252845 in words is "four billion, two hundred forty-nine million, two hundred fifty-two thousand, eight hundred forty-five".