361021864 has 32 divisors (see below), whose sum is σ = 776505600. Its totient is φ = 154146240.

The previous prime is 361021861. The next prime is 361021867. The reversal of 361021864 is 468120163.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (361021861) and next prime (361021867).

It is not an unprimeable number, because it can be changed into a prime (361021861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3282 + ... + 27070.

It is an arithmetic number, because the mean of its divisors is an integer number (24265800).

Almost surely, 2^361021864 is an apocalyptic number.

It is an amenable number.

361021864 is an abundant number, since it is smaller than the sum of its proper divisors (415483736).

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

361021864 is a wasteful number, since it uses less digits than its factorization.

361021864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24073 (or 24069 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 361021864 is about 19000.5753597095. The cubic root of 361021864 is about 712.0511104580.

The spelling of 361021864 in words is "three hundred sixty-one million, twenty-one thousand, eight hundred sixty-four".