13990652420 has 12 divisors (see below), whose sum is σ = 29380370124. Its totient is φ = 5596260960.

The previous prime is 13990652419. The next prime is 13990652441. The reversal of 13990652420 is 2425609931.

It can be written as a sum of positive squares in 2 ways, for example, as 9142036996 + 4848615424 = 95614^2 + 69632^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349766291 + ... + 349766330.

It is an arithmetic number, because the mean of its divisors is an integer number (2448364177).

Almost surely, 2^13990652420 is an apocalyptic number.

13990652420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13990652420 is an abundant number, since it is smaller than the sum of its proper divisors (15389717704).

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

13990652420 is a wasteful number, since it uses less digits than its factorization.

13990652420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699532630 (or 699532628 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 13990652420 in words is "thirteen billion, nine hundred ninety million, six hundred fifty-two thousand, four hundred twenty".