378149740 has 24 divisors (see below), whose sum is σ = 812584080. Its totient is φ = 147741888.

The previous prime is 378149711. The next prime is 378149741. The reversal of 378149740 is 47941873.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (378149741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218995 + ... + 220714.

It is an arithmetic number, because the mean of its divisors is an integer number (33857670).

Almost surely, 2^378149740 is an apocalyptic number.

It is an amenable number.

378149740 is an abundant number, since it is smaller than the sum of its proper divisors (434434340).

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

378149740 is a wasteful number, since it uses less digits than its factorization.

378149740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439761 (or 439759 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 378149740 is about 19446.0726111984. The cubic root of 378149740 is about 723.1381414374.

The spelling of 378149740 in words is "three hundred seventy-eight million, one hundred forty-nine thousand, seven hundred forty".