45338643 has 64 divisors (see below), whose sum is σ = 82667520. Its totient is φ = 23970816.

The previous prime is 45338639. The next prime is 45338717. The reversal of 45338643 is 34683354.

45338643 is a `hidden beast` number, since 4 + 5 + 3 + 3 + 8 + 643 = 666.

It is not a de Polignac number, because 45338643 - 2² = 45338639 is a prime.

It is a super-3 number, since 3×45338643³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45338598 and 45338607.

It is not an unprimeable number, because it can be changed into a prime (45338143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 330871 + ... + 331007.

It is an arithmetic number, because the mean of its divisors is an integer number (1291680).

Almost surely, 2^45338643 is an apocalyptic number.

45338643 is a deficient number, since it is larger than the sum of its proper divisors (37328877).

45338643 is a wasteful number, since it uses less digits than its factorization.

45338643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 267 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 45338643 is about 6733.3975822017. The cubic root of 45338643 is about 356.5793364473.

The spelling of 45338643 in words is "forty-five million, three hundred thirty-eight thousand, six hundred forty-three".