15226206240 has 96 divisors (see below), whose sum is σ = 54814354560. Its totient is φ = 3480274944.

The previous prime is 15226206223. The next prime is 15226206257. The reversal of 15226206240 is 4260262251.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15226206223) and next prime (15226206257).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 15226206198 and 15226206207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2262445 + ... + 2269164.

It is an arithmetic number, because the mean of its divisors is an integer number (570982860).

Almost surely, 2^15226206240 is an apocalyptic number.

15226206240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15226206240 is an abundant number, since it is smaller than the sum of its proper divisors (39588148320).

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

15226206240 is a wasteful number, since it uses less digits than its factorization.

15226206240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531634 (or 4531626 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 15226206240 its reverse (4260262251), we get a palindrome (19486468491).

The spelling of 15226206240 in words is "fifteen billion, two hundred twenty-six million, two hundred six thousand, two hundred forty".