1390249148 has 48 divisors (see below), whose sum is σ = 2521399104. Its totient is φ = 670425600.

The previous prime is 1390249073. The next prime is 1390249151. The reversal of 1390249148 is 8419420931.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4385486 + ... + 4385802.

It is an arithmetic number, because the mean of its divisors is an integer number (52529148).

Almost surely, 2^1390249148 is an apocalyptic number.

It is an amenable number.

1390249148 is a deficient number, since it is larger than the sum of its proper divisors (1131149956).

1390249148 is a wasteful number, since it uses less digits than its factorization.

1390249148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1390249148 is about 37286.0449498200. The cubic root of 1390249148 is about 1116.0857055319.

The spelling of 1390249148 in words is "one billion, three hundred ninety million, two hundred forty-nine thousand, one hundred forty-eight".