4006442418 has 32 divisors (see below), whose sum is σ = 9023311872. Its totient is φ = 1174909200.

The previous prime is 4006442413. The next prime is 4006442441. The reversal of 4006442418 is 8142446004.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (4006442413) 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, 977046 + ... + 981137.

It is an arithmetic number, because the mean of its divisors is an integer number (281978496).

Almost surely, 2^4006442418 is an apocalyptic number.

4006442418 is an abundant number, since it is smaller than the sum of its proper divisors (5016869454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4006442418 is a wasteful number, since it uses less digits than its factorization.

4006442418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958230.

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 4006442418 is about 63296.4644984220. The cubic root of 4006442418 is about 1588.2528199372.

The spelling of 4006442418 in words is "four billion, six million, four hundred forty-two thousand, four hundred eighteen".