3745904445 has 12 divisors (see below), whose sum is σ = 6492901116. Its totient is φ = 1997815680.

The previous prime is 3745904417. The next prime is 3745904483. The reversal of 3745904445 is 5444095473.

It can be written as a sum of positive squares in 2 ways, for example, as 413959716 + 3331944729 = 20346^2 + 57723^2 .

It is not a de Polignac number, because 3745904445 - 2⁵ = 3745904413 is a prime.

It is a super-2 number, since 2×3745904445² = 28063600222141516050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 83242321 = 3745904445 / (3 + 7 + 4 + 5 + 9 + 0 + 4 + 4 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3745904445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41621116 + ... + 41621205.

It is an arithmetic number, because the mean of its divisors is an integer number (541075093).

Almost surely, 2^3745904445 is an apocalyptic number.

It is an amenable number.

3745904445 is a deficient number, since it is larger than the sum of its proper divisors (2746996671).

3745904445 is a wasteful number, since it uses less digits than its factorization.

3745904445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83242332 (or 83242329 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The square root of 3745904445 is about 61203.7943676697. The cubic root of 3745904445 is about 1553.0504539870.

The spelling of 3745904445 in words is "three billion, seven hundred forty-five million, nine hundred four thousand, four hundred forty-five".