3126421692 has 24 divisors (see below), whose sum is σ = 8105538000. Its totient is φ = 1042140528.

The previous prime is 3126421691. The next prime is 3126421757. The reversal of 3126421692 is 2961246213.

It is a happy number.

3126421692 is a `hidden beast` number, since 3 + 1 + 2 + 642 + 1 + 6 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3126421691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14474067 + ... + 14474282.

It is an arithmetic number, because the mean of its divisors is an integer number (337730750).

Almost surely, 2^3126421692 is an apocalyptic number.

It is an amenable number.

3126421692 is an abundant number, since it is smaller than the sum of its proper divisors (4979116308).

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

3126421692 is a wasteful number, since it uses less digits than its factorization.

3126421692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28948362 (or 28948354 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 3126421692 is about 55914.4139913851. The cubic root of 3126421692 is about 1462.2305449667.

The spelling of 3126421692 in words is "three billion, one hundred twenty-six million, four hundred twenty-one thousand, six hundred ninety-two".