1390189852 has 6 divisors (see below), whose sum is σ = 2432832248. Its totient is φ = 695094924.

The previous prime is 1390189799. The next prime is 1390189877. The reversal of 1390189852 is 2589810931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173773728 + ... + 173773735.

Almost surely, 2^1390189852 is an apocalyptic number.

It is an amenable number.

1390189852 is a deficient number, since it is larger than the sum of its proper divisors (1042642396).

1390189852 is a wasteful number, since it uses less digits than its factorization.

1390189852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347547467 (or 347547465 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 1390189852 is about 37285.2497913049. The cubic root of 1390189852 is about 1116.0698377864.

The spelling of 1390189852 in words is "one billion, three hundred ninety million, one hundred eighty-nine thousand, eight hundred fifty-two".