366552021 has 16 divisors (see below), whose sum is σ = 539919360. Its totient is φ = 219339120.

The previous prime is 366552019. The next prime is 366552031. The reversal of 366552021 is 120255663.

It is not a de Polignac number, because 366552021 - 2¹ = 366552019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 366552021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366552001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67695 + ... + 72908.

It is an arithmetic number, because the mean of its divisors is an integer number (33744960).

Almost surely, 2^366552021 is an apocalyptic number.

It is an amenable number.

366552021 is a deficient number, since it is larger than the sum of its proper divisors (173367339).

366552021 is a wasteful number, since it uses less digits than its factorization.

366552021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140696.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 366552021 is about 19145.5483337511. The cubic root of 366552021 is about 715.6684514364.

The spelling of 366552021 in words is "three hundred sixty-six million, five hundred fifty-two thousand, twenty-one".