4040472021 has 8 divisors (see below), whose sum is σ = 5392097760. Its totient is φ = 2691247152.

The previous prime is 4040471993. The next prime is 4040472049. The reversal of 4040472021 is 1202740404.

It is an interprime number because it is at equal distance from previous prime (4040471993) and next prime (4040472049).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4040472021 - 2¹¹ = 4040469973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4040471982 and 4040472000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040472071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596286 + ... + 603023.

It is an arithmetic number, because the mean of its divisors is an integer number (674012220).

Almost surely, 2^4040472021 is an apocalyptic number.

It is an amenable number.

4040472021 is a deficient number, since it is larger than the sum of its proper divisors (1351625739).

4040472021 is a wasteful number, since it uses less digits than its factorization.

4040472021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200435.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 4040472021 is about 63564.7073540027. The cubic root of 4040472021 is about 1592.7368736630.

The spelling of 4040472021 in words is "four billion, forty million, four hundred seventy-two thousand, twenty-one".