1378249150 has 48 divisors (see below), whose sum is σ = 2702684160. Its totient is φ = 522136800.

The previous prime is 1378249141. The next prime is 1378249199. The reversal of 1378249150 is 519428731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63391 + ... + 82309.

It is an arithmetic number, because the mean of its divisors is an integer number (56305920).

Almost surely, 2^1378249150 is an apocalyptic number.

1378249150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1378249150 is a deficient number, since it is larger than the sum of its proper divisors (1324435010).

1378249150 is a wasteful number, since it uses less digits than its factorization.

1378249150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19009 (or 19004 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1378249150 is about 37124.7781138150. The cubic root of 1378249150 is about 1112.8652405105.

The spelling of 1378249150 in words is "one billion, three hundred seventy-eight million, two hundred forty-nine thousand, one hundred fifty".