377996220 has 288 divisors, whose sum is σ = 1397200896. Its totient is φ = 83980800.

The previous prime is 377996197. The next prime is 377996249. The reversal of 377996220 is 22699773.

It is a happy number.

It is a super-2 number, since 2×377996220² = 285762284668576800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1394685 + ... + 1394955.

It is an arithmetic number, because the mean of its divisors is an integer number (4851392).

Almost surely, 2^377996220 is an apocalyptic number.

377996220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 377996220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698600448).

377996220 is an abundant number, since it is smaller than the sum of its proper divisors (1019204676).

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

377996220 is a wasteful number, since it uses less digits than its factorization.

377996220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 377996220 is about 19442.1248838701. The cubic root of 377996220 is about 723.0402691023.

It can be divided in two parts, 3779 and 96220, that added together give a palindrome (99999).

The spelling of 377996220 in words is "three hundred seventy-seven million, nine hundred ninety-six thousand, two hundred twenty".