4019809401 has 24 divisors (see below), whose sum is σ = 6004687104. Its totient is φ = 2588669280.

The previous prime is 4019809399. The next prime is 4019809403. The reversal of 4019809401 is 1049089104.

It is an interprime number because it is at equal distance from previous prime (4019809399) and next prime (4019809403).

It is not a de Polignac number, because 4019809401 - 2¹ = 4019809399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4019809403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142470 + ... + 168336.

It is an arithmetic number, because the mean of its divisors is an integer number (250195296).

Almost surely, 2^4019809401 is an apocalyptic number.

It is an amenable number.

4019809401 is a deficient number, since it is larger than the sum of its proper divisors (1984877703).

4019809401 is a wasteful number, since it uses less digits than its factorization.

4019809401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26461 (or 26458 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 4019809401 is about 63401.9668543492. The cubic root of 4019809401 is about 1590.0171933586.

The spelling of 4019809401 in words is "four billion, nineteen million, eight hundred nine thousand, four hundred one".