1901738808 has 96 divisors (see below), whose sum is σ = 5399222400. Its totient is φ = 603561024.

The previous prime is 1901738807. The next prime is 1901738819. The reversal of 1901738808 is 8088371091.

1901738808 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1901738808² = 7233220987706521728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901738807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373383 + ... + 378441.

It is an arithmetic number, because the mean of its divisors is an integer number (56241900).

Almost surely, 2^1901738808 is an apocalyptic number.

1901738808 is a gapful number since it is divisible by the number (18) 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 1901738808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2699611200).

1901738808 is an abundant number, since it is smaller than the sum of its proper divisors (3497483592).

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

1901738808 is a wasteful number, since it uses less digits than its factorization.

1901738808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321 (or 5314 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 1901738808 is about 43608.9303698222. The cubic root of 1901738808 is about 1238.9400428670.

The spelling of 1901738808 in words is "one billion, nine hundred one million, seven hundred thirty-eight thousand, eight hundred eight".