364249021 has 4 divisors (see below), whose sum is σ = 385675452. Its totient is φ = 342822592.

The previous prime is 364249009. The next prime is 364249027. The reversal of 364249021 is 120942463.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 329604025 + 34644996 = 18155^2 + 5886^2 .

It is a cyclic number.

It is not a de Polignac number, because 364249021 - 2⁷ = 364248893 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364249027) 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, 10713190 + ... + 10713223.

It is an arithmetic number, because the mean of its divisors is an integer number (96418863).

Almost surely, 2^364249021 is an apocalyptic number.

It is an amenable number.

364249021 is a deficient number, since it is larger than the sum of its proper divisors (21426431).

364249021 is a wasteful number, since it uses less digits than its factorization.

364249021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21426430.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 364249021 is about 19085.3090360099. The cubic root of 364249021 is about 714.1664833425.

The spelling of 364249021 in words is "three hundred sixty-four million, two hundred forty-nine thousand, twenty-one".