45478069 has 24 divisors (see below), whose sum is σ = 57857280. Its totient is φ = 34976448.

The previous prime is 45477997. The next prime is 45478087. The reversal of 45478069 is 96087454.

It is not a de Polignac number, because 45478069 - 2¹⁷ = 45346997 is a prime.

It is a super-2 number, since 2×45478069² = 4136509519937522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45478669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43252 + ... + 44290.

It is an arithmetic number, because the mean of its divisors is an integer number (2410720).

Almost surely, 2^45478069 is an apocalyptic number.

It is an amenable number.

45478069 is a deficient number, since it is larger than the sum of its proper divisors (12379211).

45478069 is a wasteful number, since it uses less digits than its factorization.

45478069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 45478069 is about 6743.7429518035. The cubic root of 45478069 is about 356.9444815810.

The spelling of 45478069 in words is "forty-five million, four hundred seventy-eight thousand, sixty-nine".