45219839 has 8 divisors (see below), whose sum is σ = 51722400. Its totient is φ = 38727936.

The previous prime is 45219827. The next prime is 45219851. The reversal of 45219839 is 93891254.

It is an interprime number because it is at equal distance from previous prime (45219827) and next prime (45219851).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45219839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45219796 and 45219805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45219869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11387 + ... + 14835.

It is an arithmetic number, because the mean of its divisors is an integer number (6465300).

Almost surely, 2^45219839 is an apocalyptic number.

45219839 is a deficient number, since it is larger than the sum of its proper divisors (6502561).

45219839 is a wasteful number, since it uses less digits than its factorization.

45219839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5329.

The product of its digits is 77760, while the sum is 41.

The square root of 45219839 is about 6724.5698003664. The cubic root of 45219839 is about 356.2676074605.

The spelling of 45219839 in words is "forty-five million, two hundred nineteen thousand, eight hundred thirty-nine".