1445256650 has 12 divisors (see below), whose sum is σ = 2688177462. Its totient is φ = 578102640.

The previous prime is 1445256647. The next prime is 1445256677. The reversal of 1445256650 is 566525441.

It can be written as a sum of positive squares in 3 ways, for example, as 834227689 + 611028961 = 28883^2 + 24719^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14452517 + ... + 14452616.

Almost surely, 2^1445256650 is an apocalyptic number.

1445256650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1445256650 is a deficient number, since it is larger than the sum of its proper divisors (1242920812).

1445256650 is a wasteful number, since it uses less digits than its factorization.

1445256650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28905145 (or 28905140 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 1445256650 is about 38016.5312725925. The cubic root of 1445256650 is about 1130.6156485442.

The spelling of 1445256650 in words is "one billion, four hundred forty-five million, two hundred fifty-six thousand, six hundred fifty".