3806504394 has 96 divisors (see below), whose sum is σ = 9786416640. Its totient is φ = 965653920.

The previous prime is 3806504381. The next prime is 3806504423. The reversal of 3806504394 is 4934056083.

3806504394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon 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, 209817 + ... + 227235.

It is an arithmetic number, because the mean of its divisors is an integer number (101941840).

Almost surely, 2^3806504394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3806504394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4893208320).

3806504394 is an abundant number, since it is smaller than the sum of its proper divisors (5979912246).

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

3806504394 is a wasteful number, since it uses less digits than its factorization.

3806504394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17496 (or 17485 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 3806504394 is about 61696.8750748367. The cubic root of 3806504394 is about 1561.3805981603.

The spelling of 3806504394 in words is "three billion, eight hundred six million, five hundred four thousand, three hundred ninety-four".