378249740 has 24 divisors (see below), whose sum is σ = 866536272. Its totient is φ = 137545280.

The previous prime is 378249713. The next prime is 378249757. The reversal of 378249740 is 47942873.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 378249691 and 378249700.

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, 859439 + ... + 859878.

It is an arithmetic number, because the mean of its divisors is an integer number (36105678).

Almost surely, 2^378249740 is an apocalyptic number.

It is an amenable number.

378249740 is an abundant number, since it is smaller than the sum of its proper divisors (488286532).

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

378249740 is a wasteful number, since it uses less digits than its factorization.

378249740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719337 (or 1719335 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 378249740 is about 19448.6436545071. The cubic root of 378249740 is about 723.2018793636.

The spelling of 378249740 in words is "three hundred seventy-eight million, two hundred forty-nine thousand, seven hundred forty".