3809814940 has 24 divisors (see below), whose sum is σ = 8079829632. Its totient is φ = 1508836800.

The previous prime is 3809814919. The next prime is 3809814947. The reversal of 3809814940 is 494189083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3809814947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941004 + ... + 945043.

It is an arithmetic number, because the mean of its divisors is an integer number (336659568).

Almost surely, 2^3809814940 is an apocalyptic number.

It is an amenable number.

3809814940 is an abundant number, since it is smaller than the sum of its proper divisors (4270014692).

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

3809814940 is a wasteful number, since it uses less digits than its factorization.

3809814940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886157 (or 1886155 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 3809814940 is about 61723.6983661867. The cubic root of 3809814940 is about 1561.8331152179.

The spelling of 3809814940 in words is "three billion, eight hundred nine million, eight hundred fourteen thousand, nine hundred forty".