1904761728 has 48 divisors (see below), whose sum is σ = 5481153600. Its totient is φ = 634920192.

The previous prime is 1904761697. The next prime is 1904761741. The reversal of 1904761728 is 8271674091.

It is a happy number.

1904761728 is a `hidden beast` number, since 1 + 9 + 0 + 4 + 7 + 617 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 825568 + ... + 827871.

It is an arithmetic number, because the mean of its divisors is an integer number (114190700).

Almost surely, 2^1904761728 is an apocalyptic number.

1904761728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1904761728 is an abundant number, since it is smaller than the sum of its proper divisors (3576391872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1904761728 is a wasteful number, since it uses less digits than its factorization.

1904761728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653459 (or 1653444 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1904761728 is about 43643.5760221364. The cubic root of 1904761728 is about 1239.5961501373.

The spelling of 1904761728 in words is "one billion, nine hundred four million, seven hundred sixty-one thousand, seven hundred twenty-eight".