1499744421 has 72 divisors (see below), whose sum is σ = 2615315040. Its totient is φ = 825080256.

The previous prime is 1499744387. The next prime is 1499744501. The reversal of 1499744421 is 1244479941.

It is not a de Polignac number, because 1499744421 - 2⁶ = 1499744357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1499744221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1745490 + ... + 1746348.

It is an arithmetic number, because the mean of its divisors is an integer number (36323820).

Almost surely, 2^1499744421 is an apocalyptic number.

It is an amenable number.

1499744421 is a deficient number, since it is larger than the sum of its proper divisors (1115570619).

1499744421 is a wasteful number, since it uses less digits than its factorization.

1499744421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1013 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 1499744421 is about 38726.5338108125. The cubic root of 1499744421 is about 1144.6492244335.

The spelling of 1499744421 in words is "one billion, four hundred ninety-nine million, seven hundred forty-four thousand, four hundred twenty-one".