378699840 has 224 divisors, whose sum is σ = 1362821760. Its totient is φ = 98961408.

The previous prime is 378699833. The next prime is 378699859. The reversal of 378699840 is 48996873.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457507 + ... + 458333.

Almost surely, 2^378699840 is an apocalyptic number.

378699840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378699840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681410880).

378699840 is an abundant number, since it is smaller than the sum of its proper divisors (984121920).

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

378699840 is a wasteful number, since it uses less digits than its factorization.

378699840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 378699840 is about 19460.2117151895. The cubic root of 378699840 is about 723.4886247785.

The spelling of 378699840 in words is "three hundred seventy-eight million, six hundred ninety-nine thousand, eight hundred forty".