378837440 has 56 divisors (see below), whose sum is σ = 933236640. Its totient is φ = 146306048.

The previous prime is 378837427. The next prime is 378837461. The reversal of 378837440 is 44738873.

It is a junction number, because it is equal to n+sod(n) for n = 378837391 and 378837400.

It is a congruent number.

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, 11132 + ... + 29691.

It is an arithmetic number, because the mean of its divisors is an integer number (16664940).

Almost surely, 2^378837440 is an apocalyptic number.

It is an amenable number.

378837440 is an abundant number, since it is smaller than the sum of its proper divisors (554399200).

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

378837440 is a wasteful number, since it uses less digits than its factorization.

378837440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40869 (or 40859 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

The square root of 378837440 is about 19463.7468129854. The cubic root of 378837440 is about 723.5762403246.

The spelling of 378837440 in words is "three hundred seventy-eight million, eight hundred thirty-seven thousand, four hundred forty".