361221798 has 16 divisors (see below), whose sum is σ = 825649920. Its totient is φ = 103206216.

The previous prime is 361221793. The next prime is 361221803. The reversal of 361221798 is 897122163.

361221798 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (361221793) and next prime (361221803).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361221793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4300218 + ... + 4300301.

It is an arithmetic number, because the mean of its divisors is an integer number (51603120).

Almost surely, 2^361221798 is an apocalyptic number.

361221798 is an abundant number, since it is smaller than the sum of its proper divisors (464428122).

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

361221798 is a wasteful number, since it uses less digits than its factorization.

361221798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8600531.

The product of its digits is 36288, while the sum is 39.

The square root of 361221798 is about 19005.8358932197. The cubic root of 361221798 is about 712.1825308960.

The spelling of 361221798 in words is "three hundred sixty-one million, two hundred twenty-one thousand, seven hundred ninety-eight".