13620400234 has 16 divisors (see below), whose sum is σ = 23350779648. Its totient is φ = 5836933872.

The previous prime is 13620400231. The next prime is 13620400253. The reversal of 13620400234 is 43200402631.

It is a junction number, because it is equal to n+sod(n) for n = 13620400199 and 13620400208.

It is not an unprimeable number, because it can be changed into a prime (13620400231) 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, 345247 + ... + 382669.

It is an arithmetic number, because the mean of its divisors is an integer number (1459423728).

Almost surely, 2^13620400234 is an apocalyptic number.

13620400234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13620400234 is a deficient number, since it is larger than the sum of its proper divisors (9730379414).

13620400234 is a wasteful number, since it uses less digits than its factorization.

13620400234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63429.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13620400234 its reverse (43200402631), we get a palindrome (56820802865).

The spelling of 13620400234 in words is "thirteen billion, six hundred twenty million, four hundred thousand, two hundred thirty-four".