1390481847 has 12 divisors (see below), whose sum is σ = 2028360984. Its totient is φ = 917809200.

The previous prime is 1390481809. The next prime is 1390481849. The reversal of 1390481847 is 7481840931.

It is a happy number.

1390481847 is a `hidden beast` number, since 1 + 3 + 90 + 481 + 84 + 7 = 666.

It is not a de Polignac number, because 1390481847 - 2⁶ = 1390481783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390481849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763933 + ... + 765750.

It is an arithmetic number, because the mean of its divisors is an integer number (169030082).

Almost surely, 2^1390481847 is an apocalyptic number.

1390481847 is a deficient number, since it is larger than the sum of its proper divisors (637879137).

1390481847 is a wasteful number, since it uses less digits than its factorization.

1390481847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529790 (or 1529787 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1390481847 is about 37289.1652762569. The cubic root of 1390481847 is about 1116.1479719583.

The spelling of 1390481847 in words is "one billion, three hundred ninety million, four hundred eighty-one thousand, eight hundred forty-seven".