1904000340 has 144 divisors (see below), whose sum is σ = 6205018176. Its totient is φ = 434396160.

The previous prime is 1904000333. The next prime is 1904000363. The reversal of 1904000340 is 430004091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115707 + ... + 131133.

It is an arithmetic number, because the mean of its divisors is an integer number (43090404).

Almost surely, 2^1904000340 is an apocalyptic number.

1904000340 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 1904000340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3102509088).

1904000340 is an abundant number, since it is smaller than the sum of its proper divisors (4301017836).

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

1904000340 is a wasteful number, since it uses less digits than its factorization.

1904000340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15478 (or 15465 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1904000340 is about 43634.8523545113. The cubic root of 1904000340 is about 1239.4309607239.

The spelling of 1904000340 in words is "one billion, nine hundred four million, three hundred forty", and thus it is an aban number.