1494721544 has 32 divisors (see below), whose sum is σ = 2895782400. Its totient is φ = 722559360.

The previous prime is 1494721541. The next prime is 1494721561. The reversal of 1494721544 is 4451274941.

It is not an unprimeable number, because it can be changed into a prime (1494721541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336812 + ... + 341220.

It is an arithmetic number, because the mean of its divisors is an integer number (90493200).

Almost surely, 2^1494721544 is an apocalyptic number.

It is an amenable number.

1494721544 is a deficient number, since it is larger than the sum of its proper divisors (1401060856).

1494721544 is a wasteful number, since it uses less digits than its factorization.

1494721544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5809 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 1494721544 is about 38661.6288327328. The cubic root of 1494721544 is about 1143.3699258339.

The spelling of 1494721544 in words is "one billion, four hundred ninety-four million, seven hundred twenty-one thousand, five hundred forty-four".