1447621494 has 24 divisors (see below), whose sum is σ = 3182376120. Its totient is φ = 438672960.

The previous prime is 1447621453. The next prime is 1447621543. The reversal of 1447621494 is 4941267441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 996259 + ... + 997710.

It is an arithmetic number, because the mean of its divisors is an integer number (132599005).

Almost surely, 2^1447621494 is an apocalyptic number.

1447621494 is an abundant number, since it is smaller than the sum of its proper divisors (1734754626).

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

1447621494 is a wasteful number, since it uses less digits than its factorization.

1447621494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993996 (or 1993985 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 1447621494 is about 38047.6213974014. The cubic root of 1447621494 is about 1131.2319802834.

The spelling of 1447621494 in words is "one billion, four hundred forty-seven million, six hundred twenty-one thousand, four hundred ninety-four".