378019920 has 40 divisors (see below), whose sum is σ = 1171862496. Its totient is φ = 100805248.

The previous prime is 378019913. The next prime is 378019933. The reversal of 378019920 is 29910873.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 787302 + ... + 787781.

Almost surely, 2^378019920 is an apocalyptic number.

378019920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378019920 is an abundant number, since it is smaller than the sum of its proper divisors (793842576).

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

378019920 is a wasteful number, since it uses less digits than its factorization.

378019920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575099 (or 1575093 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 378019920 is about 19442.7343755965. The cubic root of 378019920 is about 723.0553800966.

The spelling of 378019920 in words is "three hundred seventy-eight million, nineteen thousand, nine hundred twenty".