378289930 has 32 divisors (see below), whose sum is σ = 693753984. Its totient is φ = 148489536.

The previous prime is 378289921. The next prime is 378289937. The reversal of 378289930 is 39982873.

It is a super-2 number, since 2×378289930² = 286206542278809800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378289937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128859 + ... + 131761.

It is an arithmetic number, because the mean of its divisors is an integer number (21679812).

Almost surely, 2^378289930 is an apocalyptic number.

378289930 is a deficient number, since it is larger than the sum of its proper divisors (315464054).

378289930 is a wasteful number, since it uses less digits than its factorization.

378289930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 378289930 is about 19449.6768610689. The cubic root of 378289930 is about 723.2274924715.

The spelling of 378289930 in words is "three hundred seventy-eight million, two hundred eighty-nine thousand, nine hundred thirty".