361720254 has 96 divisors (see below), whose sum is σ = 897889536. Its totient is φ = 96808320.

The previous prime is 361720243. The next prime is 361720259. The reversal of 361720254 is 452027163.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361720259) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1714209 + ... + 1714419.

It is an arithmetic number, because the mean of its divisors is an integer number (9353016).

Almost surely, 2^361720254 is an apocalyptic number.

361720254 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 361720254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448944768).

361720254 is an abundant number, since it is smaller than the sum of its proper divisors (536169282).

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

361720254 is an equidigital number, since it uses as much as digits as its factorization.

361720254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 361720254 is about 19018.9446079429. The cubic root of 361720254 is about 712.5099645267.

It can be divided in two parts, 3617 and 20254, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 361720254 in words is "three hundred sixty-one million, seven hundred twenty thousand, two hundred fifty-four".