378774720 has 84 divisors (see below), whose sum is σ = 1302837120. Its totient is φ = 101005824.

The previous prime is 378774719. The next prime is 378774727. The reversal of 378774720 is 27477873.

It is a super-2 number, since 2×378774720² = 286940577022156800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (378774727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62880 + ... + 68639.

Almost surely, 2^378774720 is an apocalyptic number.

378774720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378774720 is an abundant number, since it is smaller than the sum of its proper divisors (924062400).

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

378774720 is a wasteful number, since it uses less digits than its factorization.

378774720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131542 (or 131529 counting only the distinct ones).

The product of its (nonzero) digits is 460992, while the sum is 45.

The square root of 378774720 is about 19462.1355457206. The cubic root of 378774720 is about 723.5363065678.

The spelling of 378774720 in words is "three hundred seventy-eight million, seven hundred seventy-four thousand, seven hundred twenty".