4140642031 has 4 divisors (see below), whose sum is σ = 4164576552. Its totient is φ = 4116707512.

The previous prime is 4140641993. The next prime is 4140642047. The reversal of 4140642031 is 1302460414.

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

It is a cyclic number.

It is not a de Polignac number, because 4140642031 - 2⁷ = 4140641903 is a prime.

It is a super-2 number, since 2×4140642031² = 34289832857767609922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4140641987 and 4140642005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140642631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11967001 + ... + 11967346.

It is an arithmetic number, because the mean of its divisors is an integer number (1041144138).

Almost surely, 2^4140642031 is an apocalyptic number.

4140642031 is a deficient number, since it is larger than the sum of its proper divisors (23934521).

4140642031 is a wasteful number, since it uses less digits than its factorization.

4140642031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23934520.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 4140642031 is about 64347.8207167888. The cubic root of 4140642031 is about 1605.7917737539.

The spelling of 4140642031 in words is "four billion, one hundred forty million, six hundred forty-two thousand, thirty-one".