4021445407 has 8 divisors (see below), whose sum is σ = 4597008032. Its totient is φ = 3446150400.

The previous prime is 4021445401. The next prime is 4021445423. The reversal of 4021445407 is 7045441204.

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

It is not a de Polignac number, because 4021445407 - 2¹⁵ = 4021412639 is a prime.

It is a super-2 number, since 2×4021445407² = 32344046322962791298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021445401) 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, 33594 + ... + 95767.

It is an arithmetic number, because the mean of its divisors is an integer number (574626004).

Almost surely, 2^4021445407 is an apocalyptic number.

4021445407 is a deficient number, since it is larger than the sum of its proper divisors (575562625).

4021445407 is a wasteful number, since it uses less digits than its factorization.

4021445407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133809.

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 4021445407 is about 63414.8673971648. The cubic root of 4021445407 is about 1590.2328689952.

The spelling of 4021445407 in words is "four billion, twenty-one million, four hundred forty-five thousand, four hundred seven".