1378045242 has 48 divisors (see below), whose sum is σ = 3504538752. Its totient is φ = 383084640.

The previous prime is 1378045231. The next prime is 1378045259. The reversal of 1378045242 is 2425408731.

It is a happy number.

1378045242 is a `hidden beast` number, since 1 + 378 + 0 + 45 + 242 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1378045197 and 1378045206.

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, 143134 + ... + 152457.

It is an arithmetic number, because the mean of its divisors is an integer number (73011224).

Almost surely, 2^1378045242 is an apocalyptic number.

1378045242 is an abundant number, since it is smaller than the sum of its proper divisors (2126493510).

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

1378045242 is a wasteful number, since it uses less digits than its factorization.

1378045242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295643 (or 295640 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1378045242 is about 37122.0317601286. The cubic root of 1378045242 is about 1112.8103560659.

The spelling of 1378045242 in words is "one billion, three hundred seventy-eight million, forty-five thousand, two hundred forty-two".