1445225406 has 8 divisors (see below), whose sum is σ = 2890450824. Its totient is φ = 481741800.

The previous prime is 1445225381. The next prime is 1445225423. The reversal of 1445225406 is 6045225441.

It is a sphenic number, since it is the product of 3 distinct primes.

1445225406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120435445 + ... + 120435456.

It is an arithmetic number, because the mean of its divisors is an integer number (361306353).

Almost surely, 2^1445225406 is an apocalyptic number.

1445225406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1445225406 is a wasteful number, since it uses less digits than its factorization.

1445225406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240870906.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 1445225406 is about 38016.1203438752. The cubic root of 1445225406 is about 1130.6075011539.

The spelling of 1445225406 in words is "one billion, four hundred forty-five million, two hundred twenty-five thousand, four hundred six".