378253577 has 24 divisors (see below), whose sum is σ = 439985280. Its totient is φ = 322358400.

The previous prime is 378253549. The next prime is 378253591. The reversal of 378253577 is 775352873.

It is not a de Polignac number, because 378253577 - 2¹⁴ = 378237193 is a prime.

It is a super-3 number, since 3×378253577³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (378253517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414752 + ... + 415662.

It is an arithmetic number, because the mean of its divisors is an integer number (18332720).

Almost surely, 2^378253577 is an apocalyptic number.

It is an amenable number.

378253577 is a deficient number, since it is larger than the sum of its proper divisors (61731703).

378253577 is a wasteful number, since it uses less digits than its factorization.

378253577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 984 counting only the distinct ones).

The product of its digits is 1234800, while the sum is 47.

The square root of 378253577 is about 19448.7422986681. The cubic root of 378253577 is about 723.2043247640.

The spelling of 378253577 in words is "three hundred seventy-eight million, two hundred fifty-three thousand, five hundred seventy-seven".