45021024 has 72 divisors (see below), whose sum is σ = 128786112. Its totient is φ = 14918400.

The previous prime is 45021023. The next prime is 45021037. The reversal of 45021024 is 42012054.

45021024 is a `hidden beast` number, since 450 + 210 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 45020988 and 45021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45021023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63874 + ... + 64574.

It is an arithmetic number, because the mean of its divisors is an integer number (1788696).

Almost surely, 2^45021024 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 45021024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64393056).

45021024 is an abundant number, since it is smaller than the sum of its proper divisors (83765088).

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

45021024 is a wasteful number, since it uses less digits than its factorization.

45021024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 45021024 is about 6709.7707859509. The cubic root of 45021024 is about 355.7447145098.

Adding to 45021024 its reverse (42012054), we get a palindrome (87033078).

The spelling of 45021024 in words is "forty-five million, twenty-one thousand, twenty-four".