1390086488 has 24 divisors (see below), whose sum is σ = 3031949700. Its totient is φ = 595751184.

The previous prime is 1390086479. The next prime is 1390086497. The reversal of 1390086488 is 8846800931.

It is an interprime number because it is at equal distance from previous prime (1390086479) and next prime (1390086497).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1772678 + ... + 1773461.

Almost surely, 2^1390086488 is an apocalyptic number.

It is an amenable number.

1390086488 is an abundant number, since it is smaller than the sum of its proper divisors (1641863212).

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

1390086488 is a wasteful number, since it uses less digits than its factorization.

1390086488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546159 (or 3546148 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 1390086488 is about 37283.8636409909. The cubic root of 1390086488 is about 1116.0421762643.

The spelling of 1390086488 in words is "one billion, three hundred ninety million, eighty-six thousand, four hundred eighty-eight".