378780465 has 16 divisors (see below), whose sum is σ = 692627328. Its totient is φ = 173156736.

The previous prime is 378780419. The next prime is 378780481. The reversal of 378780465 is 564087873.

It is not a de Polignac number, because 378780465 - 2¹⁰ = 378779441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1803612 + ... + 1803821.

It is an arithmetic number, because the mean of its divisors is an integer number (43289208).

Almost surely, 2^378780465 is an apocalyptic number.

378780465 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

378780465 is a deficient number, since it is larger than the sum of its proper divisors (313846863).

378780465 is a wasteful number, since it uses less digits than its factorization.

378780465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607448.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 378780465 is about 19462.2831394469. The cubic root of 378780465 is about 723.5399645866.

The spelling of 378780465 in words is "three hundred seventy-eight million, seven hundred eighty thousand, four hundred sixty-five".