308999499040 has 48 divisors (see below), whose sum is σ = 772953165432. Its totient is φ = 116329222144.

The previous prime is 308999499037. The next prime is 308999499043. The reversal of 308999499040 is 40994999803.

It is an interprime number because it is at equal distance from previous prime (308999499037) and next prime (308999499043).

It can be written as a sum of positive squares in 4 ways, for example, as 239085793296 + 69913705744 = 488964^2 + 264412^2 .

It is not an unprimeable number, because it can be changed into a prime (308999499043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56798659 + ... + 56804098.

Almost surely, 2^308999499040 is an apocalyptic number.

It is an amenable number.

308999499040 is an abundant number, since it is smaller than the sum of its proper divisors (463953666392).

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

308999499040 is a wasteful number, since it uses less digits than its factorization.

308999499040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113602789 (or 113602781 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 64.

The spelling of 308999499040 in words is "three hundred eight billion, nine hundred ninety-nine million, four hundred ninety-nine thousand, forty".