45374321 has 8 divisors (see below), whose sum is σ = 46733160. Its totient is φ = 44022528.

The previous prime is 45374311. The next prime is 45374323. The reversal of 45374321 is 12347354.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30250000 + 15124321 = 5500^2 + 3889^2 .

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 45374321 - 2⁶ = 45374257 is a prime.

It is a super-2 number, since 2×45374321² = 4117658012422082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45374323) 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, 13145 + ... + 16233.

It is an arithmetic number, because the mean of its divisors is an integer number (5841645).

Almost surely, 2^45374321 is an apocalyptic number.

It is an amenable number.

45374321 is a deficient number, since it is larger than the sum of its proper divisors (1358839).

45374321 is a wasteful number, since it uses less digits than its factorization.

45374321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523.

The product of its digits is 10080, while the sum is 29.

The square root of 45374321 is about 6736.0463923581. The cubic root of 45374321 is about 356.6728453622.

The spelling of 45374321 in words is "forty-five million, three hundred seventy-four thousand, three hundred twenty-one".