1487636994 has 16 divisors (see below), whose sum is σ = 2981125440. Its totient is φ = 494903760.

The previous prime is 1487636963. The next prime is 1487636999. The reversal of 1487636994 is 4996367841.

It is not an unprimeable number, because it can be changed into a prime (1487636999) 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, 240502 + ... + 246609.

It is an arithmetic number, because the mean of its divisors is an integer number (186320340).

Almost surely, 2^1487636994 is an apocalyptic number.

1487636994 is an abundant number, since it is smaller than the sum of its proper divisors (1493488446).

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

1487636994 is a wasteful number, since it uses less digits than its factorization.

1487636994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487625.

The product of its digits is 7838208, while the sum is 57.

The square root of 1487636994 is about 38569.8975108828. The cubic root of 1487636994 is about 1141.5606495216.

The spelling of 1487636994 in words is "one billion, four hundred eighty-seven million, six hundred thirty-six thousand, nine hundred ninety-four".