361720 has 16 divisors (see below), whose sum is σ = 813960. Its totient is φ = 144672.

The previous prime is 361687. The next prime is 361723. The reversal of 361720 is 27163.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361723) 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, 4482 + ... + 4561.

2³⁶¹⁷²⁰ is an apocalyptic number.

It is an amenable number.

361720 is an abundant number, since it is smaller than the sum of its proper divisors (452240).

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

361720 is a wasteful number, since it uses less digits than its factorization.

361720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9054 (or 9050 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 361720 is about 601.4316253740. The cubic root of 361720 is about 71.2509797752.

Adding to 361720 its reverse (27163), we get a palindrome (388883).

It can be divided in two parts, 361 and 720, that added together give a triangular number (1081 = T₄₆).

The spelling of 361720 in words is "three hundred sixty-one thousand, seven hundred twenty".