45438069 has 4 divisors (see below), whose sum is σ = 60584096. Its totient is φ = 30292044.

The previous prime is 45438061. The next prime is 45438073. The reversal of 45438069 is 96083454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45438069 - 2³ = 45438061 is a prime.

It is a super-2 number, since 2×45438069² = 4129236228897522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45438061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7573009 + ... + 7573014.

It is an arithmetic number, because the mean of its divisors is an integer number (15146024).

Almost surely, 2^45438069 is an apocalyptic number.

It is an amenable number.

45438069 is a deficient number, since it is larger than the sum of its proper divisors (15146027).

45438069 is a wasteful number, since it uses less digits than its factorization.

45438069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15146026.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 45438069 is about 6740.7765873080. The cubic root of 45438069 is about 356.8398013281.

The spelling of 45438069 in words is "forty-five million, four hundred thirty-eight thousand, sixty-nine".