1499799842 has 4 divisors (see below), whose sum is σ = 2249699766. Its totient is φ = 749899920.

The previous prime is 1499799841. The next prime is 1499799859. The reversal of 1499799842 is 2489979941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2489979941 = 1741 ⋅1430201.

It can be written as a sum of positive squares in only one way, i.e., 1493899801 + 5900041 = 38651^2 + 2429^2 .

It is not an unprimeable number, because it can be changed into a prime (1499799841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374949959 + ... + 374949962.

Almost surely, 2^1499799842 is an apocalyptic number.

1499799842 is a deficient number, since it is larger than the sum of its proper divisors (749899924).

1499799842 is an equidigital number, since it uses as much as digits as its factorization.

1499799842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749899923.

The product of its digits is 11757312, while the sum is 62.

The square root of 1499799842 is about 38727.2493471974. The cubic root of 1499799842 is about 1144.6633239077.

The spelling of 1499799842 in words is "one billion, four hundred ninety-nine million, seven hundred ninety-nine thousand, eight hundred forty-two".