377321728 has 72 divisors (see below), whose sum is σ = 865347840. Its totient is φ = 160849920.

The previous prime is 377321717. The next prime is 377321753. The reversal of 377321728 is 827123773.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427848 + ... + 428728.

It is an arithmetic number, because the mean of its divisors is an integer number (12018720).

Almost surely, 2^377321728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 377321728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432673920).

377321728 is an abundant number, since it is smaller than the sum of its proper divisors (488026112).

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

377321728 is an equidigital number, since it uses as much as digits as its factorization.

377321728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1129 counting only the distinct ones).

The product of its digits is 98784, while the sum is 40.

The square root of 377321728 is about 19424.7709896410. The cubic root of 377321728 is about 722.6099515380.

The spelling of 377321728 in words is "three hundred seventy-seven million, three hundred twenty-one thousand, seven hundred twenty-eight".