378477040 has 20 divisors (see below), whose sum is σ = 879959304. Its totient is φ = 151390784.

The previous prime is 378477023. The next prime is 378477049. The reversal of 378477040 is 40774873.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 378476984 and 378477002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378477049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365402 + ... + 2365561.

Almost surely, 2^378477040 is an apocalyptic number.

It is an amenable number.

378477040 is an abundant number, since it is smaller than the sum of its proper divisors (501482264).

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

378477040 is a wasteful number, since it uses less digits than its factorization.

378477040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730976 (or 4730970 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 378477040 is about 19454.4863720428. The cubic root of 378477040 is about 723.3467138943.

The spelling of 378477040 in words is "three hundred seventy-eight million, four hundred seventy-seven thousand, forty".