45356421 has 8 divisors (see below), whose sum is σ = 65973024. Its totient is φ = 27488720.

The previous prime is 45356417. The next prime is 45356431. The reversal of 45356421 is 12465354.

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

It is a cyclic number.

It is not a de Polignac number, because 45356421 - 2² = 45356417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45356431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687186 + ... + 687251.

It is an arithmetic number, because the mean of its divisors is an integer number (8246628).

Almost surely, 2^45356421 is an apocalyptic number.

It is an amenable number.

45356421 is a deficient number, since it is larger than the sum of its proper divisors (20616603).

45356421 is a wasteful number, since it uses less digits than its factorization.

45356421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374451.

The product of its digits is 14400, while the sum is 30.

The square root of 45356421 is about 6734.7175887338. The cubic root of 45356421 is about 356.6259371586.

The spelling of 45356421 in words is "forty-five million, three hundred fifty-six thousand, four hundred twenty-one".