1040631487 has 8 divisors (see below), whose sum is σ = 1190283296. Its totient is φ = 891227232.

The previous prime is 1040631479. The next prime is 1040631497. The reversal of 1040631487 is 7841360401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1040631487 - 2³ = 1040631479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040631437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52788 + ... + 69769.

It is an arithmetic number, because the mean of its divisors is an integer number (148785412).

Almost surely, 2^1040631487 is an apocalyptic number.

1040631487 is a deficient number, since it is larger than the sum of its proper divisors (149651809).

1040631487 is a wasteful number, since it uses less digits than its factorization.

1040631487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123777.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1040631487 is about 32258.8202977108. The cubic root of 1040631487 is about 1013.3644254681.

Adding to 1040631487 its reverse (7841360401), we get a palindrome (8881991888).

The spelling of 1040631487 in words is "one billion, forty million, six hundred thirty-one thousand, four hundred eighty-seven".