13445052240 has 40 divisors (see below), whose sum is σ = 41679662688. Its totient is φ = 3585347200.

The previous prime is 13445052233. The next prime is 13445052277. The reversal of 13445052240 is 4225054431.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 = 13445052198 and 13445052207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28010286 + ... + 28010765.

Almost surely, 2^13445052240 is an apocalyptic number.

13445052240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13445052240 is an abundant number, since it is smaller than the sum of its proper divisors (28234610448).

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

13445052240 is a wasteful number, since it uses less digits than its factorization.

13445052240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56021067 (or 56021061 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 13445052240 in words is "thirteen billion, four hundred forty-five million, fifty-two thousand, two hundred forty".