45023748 has 72 divisors (see below), whose sum is σ = 133336224. Its totient is φ = 11692800.

The previous prime is 45023731. The next prime is 45023753. The reversal of 45023748 is 84732054.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2988 + ... + 9948.

It is an arithmetic number, because the mean of its divisors is an integer number (1851892).

Almost surely, 2^45023748 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 45023748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66668112).

45023748 is an abundant number, since it is smaller than the sum of its proper divisors (88312476).

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

45023748 is a wasteful number, since it uses less digits than its factorization.

45023748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993 (or 6984 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 45023748 is about 6709.9737704405. The cubic root of 45023748 is about 355.7518891509.

The spelling of 45023748 in words is "forty-five million, twenty-three thousand, seven hundred forty-eight".