4005105542 has 4 divisors (see below), whose sum is σ = 6007658316. Its totient is φ = 2002552770.

The previous prime is 4005105509. The next prime is 4005105557. The reversal of 4005105542 is 2455015004.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×4005105542² = 32081740805118227528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001276384 + ... + 1001276387.

It is an arithmetic number, because the mean of its divisors is an integer number (1501914579).

Almost surely, 2^4005105542 is an apocalyptic number.

4005105542 is a deficient number, since it is larger than the sum of its proper divisors (2002552774).

4005105542 is a wasteful number, since it uses less digits than its factorization.

4005105542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002552773.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 4005105542 is about 63285.9031854646. The cubic root of 4005105542 is about 1588.0761433858.

The spelling of 4005105542 in words is "four billion, five million, one hundred five thousand, five hundred forty-two".