3685440445 has 8 divisors (see below), whose sum is σ = 4422862080. Its totient is φ = 2948130000.

The previous prime is 3685440439. The next prime is 3685440449. The reversal of 3685440445 is 5440445863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3685440445 - 2⁵ = 3685440413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685440449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92320 + ... + 126070.

It is an arithmetic number, because the mean of its divisors is an integer number (552857760).

Almost surely, 2^3685440445 is an apocalyptic number.

It is an amenable number.

3685440445 is a deficient number, since it is larger than the sum of its proper divisors (737421635).

3685440445 is a wasteful number, since it uses less digits than its factorization.

3685440445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55595.

The product of its (nonzero) digits is 921600, while the sum is 43.

The square root of 3685440445 is about 60707.8285314176. The cubic root of 3685440445 is about 1544.6489701490.

The spelling of 3685440445 in words is "three billion, six hundred eighty-five million, four hundred forty thousand, four hundred forty-five".