1499688331940 has 48 divisors (see below), whose sum is σ = 3193155408240. Its totient is φ = 591534028800.

The previous prime is 1499688331919. The next prime is 1499688331969. The reversal of 1499688331940 is 491338869941.

It can be written as a sum of positive squares in 8 ways, for example, as 37199608384 + 1462488723556 = 192872^2 + 1209334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7032890 + ... + 7242990.

It is an arithmetic number, because the mean of its divisors is an integer number (66524071005).

Almost surely, 2^{1499688331940} is an apocalyptic number.

1499688331940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1499688331940 is an abundant number, since it is smaller than the sum of its proper divisors (1693467076300).

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

1499688331940 is a wasteful number, since it uses less digits than its factorization.

1499688331940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215072 (or 215070 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 65.

The spelling of 1499688331940 in words is "one trillion, four hundred ninety-nine billion, six hundred eighty-eight million, three hundred thirty-one thousand, nine hundred forty".