1226032652440 has 16 divisors (see below), whose sum is σ = 2758573468080. Its totient is φ = 490413060960.

The previous prime is 1226032652437. The next prime is 1226032652443. The reversal of 1226032652440 is 442562306221.

It is an interprime number because it is at equal distance from previous prime (1226032652437) and next prime (1226032652443).

It is a self number, because there is not a number n which added to its sum of digits gives 1226032652440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226032652443) 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, 15325408116 + ... + 15325408195.

It is an arithmetic number, because the mean of its divisors is an integer number (172410841755).

Almost surely, 2^{1226032652440} is an apocalyptic number.

1226032652440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226032652440 is an abundant number, since it is smaller than the sum of its proper divisors (1532540815640).

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

1226032652440 is a wasteful number, since it uses less digits than its factorization.

1226032652440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30650816322 (or 30650816318 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 1226032652440 its reverse (442562306221), we get a palindrome (1668594958661).

The spelling of 1226032652440 in words is "one trillion, two hundred twenty-six billion, thirty-two million, six hundred fifty-two thousand, four hundred forty".