1904090341 has 4 divisors (see below), whose sum is σ = 1920940812. Its totient is φ = 1887239872.

The previous prime is 1904090261. The next prime is 1904090369. The reversal of 1904090341 is 1430904091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1430904091 = 2549 ⋅561359.

It can be written as a sum of positive squares in 2 ways, for example, as 137569441 + 1766520900 = 11729^2 + 42030^2 .

It is a cyclic number.

It is not a de Polignac number, because 1904090341 - 2¹³ = 1904082149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1904094341) 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, 8425066 + ... + 8425291.

It is an arithmetic number, because the mean of its divisors is an integer number (480235203).

Almost surely, 2^1904090341 is an apocalyptic number.

It is an amenable number.

1904090341 is a deficient number, since it is larger than the sum of its proper divisors (16850471).

1904090341 is a wasteful number, since it uses less digits than its factorization.

1904090341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16850470.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1904090341 is about 43635.8836395002. The cubic root of 1904090341 is about 1239.4504894788.

The spelling of 1904090341 in words is "one billion, nine hundred four million, ninety thousand, three hundred forty-one".