4207642605 has 20 divisors (see below), whose sum is σ = 7542589692. Its totient is φ = 2244075840.

The previous prime is 4207642559. The next prime is 4207642631. The reversal of 4207642605 is 5062467024.

4207642605 is a `hidden beast` number, since 4 + 2 + 0 + 7 + 6 + 42 + 605 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3237382404 + 970260201 = 56898^2 + 31149^2 .

It is not a de Polignac number, because 4207642605 - 2¹¹ = 4207640557 is a prime.

It is a super-2 number, since 2×4207642605² = 35408512582822372050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4207642605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5194216 + ... + 5195025.

Almost surely, 2^4207642605 is an apocalyptic number.

4207642605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4207642605 is a deficient number, since it is larger than the sum of its proper divisors (3334947087).

4207642605 is a wasteful number, since it uses less digits than its factorization.

4207642605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10389258 (or 10389249 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 4207642605 is about 64866.3441624391. The cubic root of 4207642605 is about 1614.4066877762.

It can be divided in two parts, 42076 and 42605, that added together give a square (84681 = 291²).

The spelling of 4207642605 in words is "four billion, two hundred seven million, six hundred forty-two thousand, six hundred five".