378520730 has 64 divisors (see below), whose sum is σ = 808192512. Its totient is φ = 124934400.

The previous prime is 378520699. The next prime is 378520771. The reversal of 378520730 is 37025873.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 260867 + ... + 262313.

It is an arithmetic number, because the mean of its divisors is an integer number (12628008).

Almost surely, 2^378520730 is an apocalyptic number.

378520730 is an abundant number, since it is smaller than the sum of its proper divisors (429671782).

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

378520730 is a wasteful number, since it uses less digits than its factorization.

378520730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 378520730 is about 19455.6092168814. The cubic root of 378520730 is about 723.3745463197.

The spelling of 378520730 in words is "three hundred seventy-eight million, five hundred twenty thousand, seven hundred thirty".