13442520406 has 32 divisors (see below), whose sum is σ = 24292120320. Its totient is φ = 5450004000.

The previous prime is 13442520401. The next prime is 13442520437. The reversal of 13442520406 is 60402524431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13442520401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150421 + ... + 222511.

It is an arithmetic number, because the mean of its divisors is an integer number (759128760).

Almost surely, 2^13442520406 is an apocalyptic number.

13442520406 is a deficient number, since it is larger than the sum of its proper divisors (10849599914).

13442520406 is a wasteful number, since it uses less digits than its factorization.

13442520406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72820.

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 13442520406 in words is "thirteen billion, four hundred forty-two million, five hundred twenty thousand, four hundred six".