1538952680 has 16 divisors (see below), whose sum is σ = 3462643620. Its totient is φ = 615581056.

The previous prime is 1538952677. The next prime is 1538952683. The reversal of 1538952680 is 862598351.

It is an interprime number because it is at equal distance from previous prime (1538952677) and next prime (1538952683).

It can be written as a sum of positive squares in 2 ways, for example, as 1532409316 + 6543364 = 39146^2 + 2558^2 .

It is not an unprimeable number, because it can be changed into a prime (1538952683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19236869 + ... + 19236948.

Almost surely, 2^1538952680 is an apocalyptic number.

1538952680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1538952680 is an abundant number, since it is smaller than the sum of its proper divisors (1923690940).

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

1538952680 is a wasteful number, since it uses less digits than its factorization.

1538952680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38473828 (or 38473824 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 1538952680 is about 39229.4873787563. The cubic root of 1538952680 is about 1154.5385061836.

The spelling of 1538952680 in words is "one billion, five hundred thirty-eight million, nine hundred fifty-two thousand, six hundred eighty".