1904878080 has 640 divisors, whose sum is σ = 8045199360. Its totient is φ = 418037760.

The previous prime is 1904878069. The next prime is 1904878091. The reversal of 1904878080 is 808784091.

1904878080 is a `hidden beast` number, since 1 + 90 + 487 + 8 + 0 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (1904878069) and next prime (1904878091).

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14998977 + ... + 14999103.

It is an arithmetic number, because the mean of its divisors is an integer number (12570624).

Almost surely, 2^1904878080 is an apocalyptic number.

1904878080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1904878080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4022599680).

1904878080 is an abundant number, since it is smaller than the sum of its proper divisors (6140321280).

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

1904878080 is a wasteful number, since it uses less digits than its factorization.

1904878080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 1904878080 is about 43644.9089814608. The cubic root of 1904878080 is about 1239.6213897867.

The spelling of 1904878080 in words is "one billion, nine hundred four million, eight hundred seventy-eight thousand, eighty".