4018429391 has 2 divisors, whose sum is σ = 4018429392. Its totient is φ = 4018429390.

The previous prime is 4018429367. The next prime is 4018429403. The reversal of 4018429391 is 1939248104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4018429391 - 2¹⁸ = 4018167247 is a prime.

It is a super-2 number, since 2×4018429391² = 32295549540905261762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4018429361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2009214695 + 2009214696.

It is an arithmetic number, because the mean of its divisors is an integer number (2009214696).

Almost surely, 2^4018429391 is an apocalyptic number.

4018429391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4018429391 is an equidigital number, since it uses as much as digits as its factorization.

4018429391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 4018429391 is about 63391.0828981490. The cubic root of 4018429391 is about 1589.8352203220.

The spelling of 4018429391 in words is "four billion, eighteen million, four hundred twenty-nine thousand, three hundred ninety-one".