4402650021 has 64 divisors (see below), whose sum is σ = 7770525696. Its totient is φ = 2146636800.

The previous prime is 4402649971. The next prime is 4402650023. The reversal of 4402650021 is 1200562044.

It is not a de Polignac number, because 4402650021 - 2⁶ = 4402649957 is a prime.

It is a super-2 number, since 2×4402650021² = 38766654414822600882, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4402649973 and 4402650000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4402650023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1651936 + ... + 1654598.

It is an arithmetic number, because the mean of its divisors is an integer number (121414464).

Almost surely, 2^4402650021 is an apocalyptic number.

It is an amenable number.

4402650021 is a deficient number, since it is larger than the sum of its proper divisors (3367875675).

4402650021 is a wasteful number, since it uses less digits than its factorization.

4402650021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 4402650021 is about 66352.4680852190. The cubic root of 4402650021 is about 1638.9714476902.

The spelling of 4402650021 in words is "four billion, four hundred two million, six hundred fifty thousand, twenty-one".