377978454 has 64 divisors (see below), whose sum is σ = 979584000. Its totient is φ = 107988552.

The previous prime is 377978449. The next prime is 377978477. The reversal of 377978454 is 454879773.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 377978454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8319 + ... + 28725.

It is an arithmetic number, because the mean of its divisors is an integer number (15306000).

Almost surely, 2^377978454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 377978454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489792000).

377978454 is an abundant number, since it is smaller than the sum of its proper divisors (601605546).

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

377978454 is a wasteful number, since it uses less digits than its factorization.

377978454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20439 (or 20419 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The square root of 377978454 is about 19441.6679839977. The cubic root of 377978454 is about 723.0289411806.

The spelling of 377978454 in words is "three hundred seventy-seven million, nine hundred seventy-eight thousand, four hundred fifty-four".