4019291438 has 4 divisors (see below), whose sum is σ = 6028937160. Its totient is φ = 2009645718.

The previous prime is 4019291431. The next prime is 4019291443. The reversal of 4019291438 is 8341929104.

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

It is a junction number, because it is equal to n+sod(n) for n = 4019291395 and 4019291404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4019291431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004822858 + ... + 1004822861.

It is an arithmetic number, because the mean of its divisors is an integer number (1507234290).

Almost surely, 2^4019291438 is an apocalyptic number.

4019291438 is a deficient number, since it is larger than the sum of its proper divisors (2009645722).

4019291438 is a wasteful number, since it uses less digits than its factorization.

4019291438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009645721.

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

The square root of 4019291438 is about 63397.8819677755. The cubic root of 4019291438 is about 1589.9488977946.

The spelling of 4019291438 in words is "four billion, nineteen million, two hundred ninety-one thousand, four hundred thirty-eight".