366968021 has 4 divisors (see below), whose sum is σ = 419392032. Its totient is φ = 314544012.

The previous prime is 366967981. The next prime is 366968027. The reversal of 366968021 is 120869663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 366968021 - 2¹⁸ = 366705877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 366968021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366968027) 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, 26211995 + ... + 26212008.

It is an arithmetic number, because the mean of its divisors is an integer number (104848008).

Almost surely, 2^366968021 is an apocalyptic number.

It is an amenable number.

366968021 is a deficient number, since it is larger than the sum of its proper divisors (52424011).

366968021 is an equidigital number, since it uses as much as digits as its factorization.

366968021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52424010.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 366968021 is about 19156.4093973792. The cubic root of 366968021 is about 715.9390865286.

The spelling of 366968021 in words is "three hundred sixty-six million, nine hundred sixty-eight thousand, twenty-one".