4030472021 has 4 divisors (see below), whose sum is σ = 4054606752. Its totient is φ = 4006337292.

The previous prime is 4030472011. The next prime is 4030472023. The reversal of 4030472021 is 1202740304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4030472021 - 2¹⁸ = 4030209877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030472023) 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 3 ways as a sum of consecutive naturals, for example, 12067115 + ... + 12067448.

It is an arithmetic number, because the mean of its divisors is an integer number (1013651688).

Almost surely, 2^4030472021 is an apocalyptic number.

It is an amenable number.

4030472021 is a deficient number, since it is larger than the sum of its proper divisors (24134731).

4030472021 is a wasteful number, since it uses less digits than its factorization.

4030472021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24134730.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 4030472021 is about 63485.9986217434. The cubic root of 4030472021 is about 1591.4218023372.

The spelling of 4030472021 in words is "four billion, thirty million, four hundred seventy-two thousand, twenty-one".