40441667445 has 24 divisors (see below), whose sum is σ = 72695147616. Its totient is φ = 21568888656.

The previous prime is 40441667429. The next prime is 40441667467. The reversal of 40441667445 is 54476614404.

40441667445 is a `hidden beast` number, since 4 + 0 + 44 + 166 + 7 + 445 = 666.

It is not a de Polignac number, because 40441667445 - 2⁴ = 40441667429 is a prime.

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 40441667445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16641447 + ... + 16643876.

It is an arithmetic number, because the mean of its divisors is an integer number (3028964484).

Almost surely, 2^40441667445 is an apocalyptic number.

40441667445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40441667445 is a deficient number, since it is larger than the sum of its proper divisors (32253480171).

40441667445 is an equidigital number, since it uses as much as digits as its factorization.

40441667445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33285343 (or 33285331 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 40441667445 in words is "forty billion, four hundred forty-one million, six hundred sixty-seven thousand, four hundred forty-five".