377988390 has 128 divisors (see below), whose sum is σ = 1096260480. Its totient is φ = 92123136.

The previous prime is 377988367. The next prime is 377988409. The reversal of 377988390 is 93889773.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 396154 + ... + 397106.

It is an arithmetic number, because the mean of its divisors is an integer number (8564535).

Almost surely, 2^377988390 is an apocalyptic number.

377988390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 377988390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548130240).

377988390 is an abundant number, since it is smaller than the sum of its proper divisors (718272090).

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

377988390 is a wasteful number, since it uses less digits than its factorization.

377988390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 377988390 is about 19441.9235159487. The cubic root of 377988390 is about 723.0352765970.

The spelling of 377988390 in words is "three hundred seventy-seven million, nine hundred eighty-eight thousand, three hundred ninety".