3689823942 has 40 divisors (see below), whose sum is σ = 9449075856. Its totient is φ = 1054235088.

The previous prime is 3689823919. The next prime is 3689823947. The reversal of 3689823942 is 2493289863.

It is a happy number.

3689823942 is a `hidden beast` number, since 368 + 9 + 8 + 239 + 42 = 666.

It is a super-2 number, since 2×3689823942² = 27229601445912838728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689823947) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1625773 + ... + 1628040.

Almost surely, 2^3689823942 is an apocalyptic number.

3689823942 is an abundant number, since it is smaller than the sum of its proper divisors (5759251914).

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

3689823942 is a wasteful number, since it uses less digits than its factorization.

3689823942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253834 (or 3253825 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 3689823942 is about 60743.9210291861. The cubic root of 3689823942 is about 1545.2611341058.

The spelling of 3689823942 in words is "three billion, six hundred eighty-nine million, eight hundred twenty-three thousand, nine hundred forty-two".