378054451 has 4 divisors (see below), whose sum is σ = 378129352. Its totient is φ = 377979552.

The previous prime is 378054403. The next prime is 378054463. The reversal of 378054451 is 154450873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154450873 = 641 ⋅240953.

It is a cyclic number.

It is not a de Polignac number, because 378054451 - 2¹⁹ = 377530163 is a prime.

It is a super-2 number, since 2×378054451² = 285850335841822802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378054451.

It is not an unprimeable number, because it can be changed into a prime (378054251) 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, 29286 + ... + 40171.

It is an arithmetic number, because the mean of its divisors is an integer number (94532338).

Almost surely, 2^378054451 is an apocalyptic number.

378054451 is a deficient number, since it is larger than the sum of its proper divisors (74901).

378054451 is an equidigital number, since it uses as much as digits as its factorization.

378054451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74900.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 378054451 is about 19443.6223734159. The cubic root of 378054451 is about 723.0773957487.

The spelling of 378054451 in words is "three hundred seventy-eight million, fifty-four thousand, four hundred fifty-one".