45919836 has 72 divisors (see below), whose sum is σ = 121356144. Its totient is φ = 14626560.

The previous prime is 45919813. The next prime is 45919837. The reversal of 45919836 is 63891954.

It is a happy number.

45919836 is a `hidden beast` number, since 459 + 198 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 45919791 and 45919800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45919837) 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, 77935 + ... + 78521.

It is an arithmetic number, because the mean of its divisors is an integer number (1685502).

Almost surely, 2^45919836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45919836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60678072).

45919836 is an abundant number, since it is smaller than the sum of its proper divisors (75436308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45919836 is a wasteful number, since it uses less digits than its factorization.

45919836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 686 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 45919836 is about 6776.4176376608. The cubic root of 45919836 is about 358.0965273454.

The spelling of 45919836 in words is "forty-five million, nine hundred nineteen thousand, eight hundred thirty-six".