1904090342 has 32 divisors (see below), whose sum is σ = 3595497984. Its totient is φ = 734644800.

The previous prime is 1904090261. The next prime is 1904090369. The reversal of 1904090342 is 2430904091.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1904090299 and 1904090308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44159 + ... + 75882.

It is an arithmetic number, because the mean of its divisors is an integer number (112359312).

Almost surely, 2^1904090342 is an apocalyptic number.

1904090342 is a deficient number, since it is larger than the sum of its proper divisors (1691407642).

1904090342 is a wasteful number, since it uses less digits than its factorization.

1904090342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120164.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1904090342 is about 43635.8836509586. The cubic root of 1904090342 is about 1239.4504896958.

The spelling of 1904090342 in words is "one billion, nine hundred four million, ninety thousand, three hundred forty-two".