364920421 has 4 divisors (see below), whose sum is σ = 365124844. Its totient is φ = 364716000.

The previous prime is 364920407. The next prime is 364920463. The reversal of 364920421 is 124029463.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124029463 = 563 ⋅220301.

It can be written as a sum of positive squares in 2 ways, for example, as 239816196 + 125104225 = 15486^2 + 11185^2 .

It is a cyclic number.

It is not a de Polignac number, because 364920421 - 2⁵ = 364920389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (364920481) 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, 99510 + ... + 103111.

It is an arithmetic number, because the mean of its divisors is an integer number (91281211).

Almost surely, 2^364920421 is an apocalyptic number.

It is an amenable number.

364920421 is a deficient number, since it is larger than the sum of its proper divisors (204423).

364920421 is a wasteful number, since it uses less digits than its factorization.

364920421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204422.

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

The square root of 364920421 is about 19102.8903833949. The cubic root of 364920421 is about 714.6050084942.

Adding to 364920421 its reverse (124029463), we get a palindrome (488949884).

The spelling of 364920421 in words is "three hundred sixty-four million, nine hundred twenty thousand, four hundred twenty-one".