2001941438 has 16 divisors (see below), whose sum is σ = 3432513120. Its totient is φ = 857821536.

The previous prime is 2001941401. The next prime is 2001941531. The reversal of 2001941438 is 8341491002.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107120 + ... + 124412.

It is an arithmetic number, because the mean of its divisors is an integer number (214532070).

Almost surely, 2^2001941438 is an apocalyptic number.

2001941438 is a deficient number, since it is larger than the sum of its proper divisors (1430571682).

2001941438 is a wasteful number, since it uses less digits than its factorization.

2001941438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25571.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 2001941438 is about 44743.0602216701. The cubic root of 2001941438 is about 1260.3285944868.

The spelling of 2001941438 in words is "two billion, one million, nine hundred forty-one thousand, four hundred thirty-eight".