45305421 has 8 divisors (see below), whose sum is σ = 69036864. Its totient is φ = 25888800.

The previous prime is 45305419. The next prime is 45305431. The reversal of 45305421 is 12450354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45305421 - 2¹ = 45305419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45305391 and 45305400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45305401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078680 + ... + 1078721.

It is an arithmetic number, because the mean of its divisors is an integer number (8629608).

Almost surely, 2^45305421 is an apocalyptic number.

It is an amenable number.

45305421 is a deficient number, since it is larger than the sum of its proper divisors (23731443).

45305421 is a wasteful number, since it uses less digits than its factorization.

45305421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157411.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 45305421 is about 6730.9301734604. The cubic root of 45305421 is about 356.4922203761.

Adding to 45305421 its reverse (12450354), we get a palindrome (57755775).

The spelling of 45305421 in words is "forty-five million, three hundred five thousand, four hundred twenty-one".