1487040138 has 24 divisors (see below), whose sum is σ = 3309000708. Its totient is φ = 482283072.

The previous prime is 1487040083. The next prime is 1487040157. The reversal of 1487040138 is 8310407841.

1487040138 is a `hidden beast` number, since 1 + 487 + 0 + 40 + 138 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1304871129 + 182169009 = 36123^2 + 13497^2 .

It is a super-2 number, since 2×1487040138² = 4422576744046118088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1115731 + ... + 1117062.

Almost surely, 2^1487040138 is an apocalyptic number.

1487040138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1487040138 is an abundant number, since it is smaller than the sum of its proper divisors (1821960570).

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

1487040138 is a wasteful number, since it uses less digits than its factorization.

1487040138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232838 (or 2232835 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 1487040138 is about 38562.1594053030. The cubic root of 1487040138 is about 1141.4079602864.

Adding to 1487040138 its reverse (8310407841), we get a palindrome (9797447979).

The spelling of 1487040138 in words is "one billion, four hundred eighty-seven million, forty thousand, one hundred thirty-eight".