45447345 has 32 divisors (see below), whose sum is σ = 82684800. Its totient is φ = 23671872.

The previous prime is 45447343. The next prime is 45447361. The reversal of 45447345 is 54374454.

45447345 is a `hidden beast` number, since 4 + 544 + 73 + 45 = 666.

It is not a de Polignac number, because 45447345 - 2¹ = 45447343 is a prime.

It is a super-2 number, since 2×45447345² = 4130922335098050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45447343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1891 + ... + 9719.

It is an arithmetic number, because the mean of its divisors is an integer number (2583900).

Almost surely, 2^45447345 is an apocalyptic number.

45447345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45447345 is a deficient number, since it is larger than the sum of its proper divisors (37237455).

45447345 is a wasteful number, since it uses less digits than its factorization.

45447345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7886 (or 7880 counting only the distinct ones).

The product of its digits is 134400, while the sum is 36.

The square root of 45447345 is about 6741.4646034819. The cubic root of 45447345 is about 356.8640821485.

The spelling of 45447345 in words is "forty-five million, four hundred forty-seven thousand, three hundred forty-five".