1499742644 has 12 divisors (see below), whose sum is σ = 2625779268. Its totient is φ = 749520000.

The previous prime is 1499742631. The next prime is 1499742677. The reversal of 1499742644 is 4462479941.

It can be written as a sum of positive squares in 2 ways, for example, as 310182544 + 1189560100 = 17612^2 + 34490^2 .

It is a super-2 number, since 2×1499742644² = 4498455996464221472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1499742592 and 1499742601.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 78107 + ... + 95394.

It is an arithmetic number, because the mean of its divisors is an integer number (218814939).

Almost surely, 2^1499742644 is an apocalyptic number.

It is an amenable number.

1499742644 is a deficient number, since it is larger than the sum of its proper divisors (1126036624).

1499742644 is a wasteful number, since it uses less digits than its factorization.

1499742644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175666 (or 175664 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 50.

The square root of 1499742644 is about 38726.5108678796. The cubic root of 1499742644 is about 1144.6487723470.

The spelling of 1499742644 in words is "one billion, four hundred ninety-nine million, seven hundred forty-two thousand, six hundred forty-four".