1390275048 has 32 divisors (see below), whose sum is σ = 3509438400. Its totient is φ = 458924928.

The previous prime is 1390275023. The next prime is 1390275059. The reversal of 1390275048 is 8405720931.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1390274997 and 1390275015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278733 + ... + 283676.

It is an arithmetic number, because the mean of its divisors is an integer number (109669950).

Almost surely, 2^1390275048 is an apocalyptic number.

It is an amenable number.

1390275048 is an abundant number, since it is smaller than the sum of its proper divisors (2119163352).

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

1390275048 is a wasteful number, since it uses less digits than its factorization.

1390275048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562521 (or 562517 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1390275048 is about 37286.3922631300. The cubic root of 1390275048 is about 1116.0926362897.

Adding to 1390275048 its reverse (8405720931), we get a palindrome (9795995979).

The spelling of 1390275048 in words is "one billion, three hundred ninety million, two hundred seventy-five thousand, forty-eight".