3021845940 has 72 divisors (see below), whose sum is σ = 9505772640. Its totient is φ = 805824288.

The previous prime is 3021845923. The next prime is 3021845987. The reversal of 3021845940 is 495481203.

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

It is a junction number, because it is equal to n+sod(n) for n = 3021845895 and 3021845904.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 306030 + ... + 315749.

It is an arithmetic number, because the mean of its divisors is an integer number (132024620).

Almost surely, 2^3021845940 is an apocalyptic number.

3021845940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3021845940 is an abundant number, since it is smaller than the sum of its proper divisors (6483926700).

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

3021845940 is a wasteful number, since it uses less digits than its factorization.

3021845940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621803 (or 621789 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3021845940 is about 54971.3192492230. The cubic root of 3021845940 is about 1445.7419177494.

The spelling of 3021845940 in words is "three billion, twenty-one million, eight hundred forty-five thousand, nine hundred forty".