45343421 has 4 divisors (see below), whose sum is σ = 46806144. Its totient is φ = 43880700.

The previous prime is 45343411. The next prime is 45343433. The reversal of 45343421 is 12434354.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12434354 = 2 ⋅6217177.

It is a cyclic number.

It is not a de Polignac number, because 45343421 - 2⁶ = 45343357 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 (45343411) 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, 731315 + ... + 731376.

It is an arithmetic number, because the mean of its divisors is an integer number (11701536).

Almost surely, 2^45343421 is an apocalyptic number.

It is an amenable number.

45343421 is a deficient number, since it is larger than the sum of its proper divisors (1462723).

45343421 is a wasteful number, since it uses less digits than its factorization.

45343421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462722.

The product of its digits is 5760, while the sum is 26.

The square root of 45343421 is about 6733.7523714494. The cubic root of 45343421 is about 356.5918620113.

Adding to 45343421 its reverse (12434354), we get a palindrome (57777775).

The spelling of 45343421 in words is "forty-five million, three hundred forty-three thousand, four hundred twenty-one".