378765474 has 16 divisors (see below), whose sum is σ = 802091808. Its totient is φ = 118828352.

The previous prime is 378765473. The next prime is 378765479. The reversal of 378765474 is 474567873.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (378765473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856592 + ... + 1856795.

It is an arithmetic number, because the mean of its divisors is an integer number (50130738).

Almost surely, 2^378765474 is an apocalyptic number.

378765474 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

378765474 is an abundant number, since it is smaller than the sum of its proper divisors (423326334).

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

378765474 is a wasteful number, since it uses less digits than its factorization.

378765474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713409.

The product of its digits is 3951360, while the sum is 51.

The square root of 378765474 is about 19461.8980061041. The cubic root of 378765474 is about 723.5304192767.

The spelling of 378765474 in words is "three hundred seventy-eight million, seven hundred sixty-five thousand, four hundred seventy-four".