13858622740 has 12 divisors (see below), whose sum is σ = 29103107796. Its totient is φ = 5543449088.

The previous prime is 13858622737. The next prime is 13858622741. The reversal of 13858622740 is 4722685831.

It can be written as a sum of positive squares in 2 ways, for example, as 4091649156 + 9766973584 = 63966^2 + 98828^2 .

It is a super-2 number, since 2×13858622740² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13858622741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346465549 + ... + 346465588.

It is an arithmetic number, because the mean of its divisors is an integer number (2425258983).

Almost surely, 2^13858622740 is an apocalyptic number.

13858622740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13858622740 is an abundant number, since it is smaller than the sum of its proper divisors (15244485056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13858622740 is a wasteful number, since it uses less digits than its factorization.

13858622740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692931146 (or 692931144 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 13858622740 in words is "thirteen billion, eight hundred fifty-eight million, six hundred twenty-two thousand, seven hundred forty".