45639750 has 128 divisors (see below), whose sum is σ = 127475712. Its totient is φ = 10800000.

The previous prime is 45639701. The next prime is 45639787. The reversal of 45639750 is 5793654.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 45639699 and 45639708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 302175 + ... + 302325.

It is an arithmetic number, because the mean of its divisors is an integer number (995904).

Almost surely, 2^45639750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45639750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63737856).

45639750 is an abundant number, since it is smaller than the sum of its proper divisors (81835962).

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

45639750 is a wasteful number, since it uses less digits than its factorization.

45639750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 45639750 is about 6755.7197988075. The cubic root of 45639750 is about 357.3669774221.

The spelling of 45639750 in words is "forty-five million, six hundred thirty-nine thousand, seven hundred fifty".