45840069 has 12 divisors (see below), whose sum is σ = 72232992. Its totient is φ = 27781800.

The previous prime is 45840037. The next prime is 45840079. The reversal of 45840069 is 96004854.

It is not a de Polignac number, because 45840069 - 2⁵ = 45840037 is a prime.

It is a super-2 number, since 2×45840069² = 4202623851849522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45840019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231417 + ... + 231614.

It is an arithmetic number, because the mean of its divisors is an integer number (6019416).

Almost surely, 2^45840069 is an apocalyptic number.

It is an amenable number.

45840069 is a deficient number, since it is larger than the sum of its proper divisors (26392923).

45840069 is a wasteful number, since it uses less digits than its factorization.

45840069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463048 (or 463045 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 45840069 is about 6770.5294475395. The cubic root of 45840069 is about 357.8890582444.

The spelling of 45840069 in words is "forty-five million, eight hundred forty thousand, sixty-nine".