40221024 has 48 divisors (see below), whose sum is σ = 111142080. Its totient is φ = 12700800.

The previous prime is 40221023. The next prime is 40221047. The reversal of 40221024 is 42012204.

40221024 = 2110² + 2111² + ... + 2118².

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 40220994 and 40221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221023) 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, 9202 + ... + 12849.

It is an arithmetic number, because the mean of its divisors is an integer number (2315460).

Almost surely, 2^40221024 is an apocalyptic number.

It is an amenable number.

40221024 is an abundant number, since it is smaller than the sum of its proper divisors (70921056).

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

40221024 is a wasteful number, since it uses less digits than its factorization.

40221024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22083 (or 22075 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 40221024 is about 6342.0047303672. The cubic root of 40221024 is about 342.6239422139.

Adding to 40221024 its reverse (42012204), we get a palindrome (82233228).

The spelling of 40221024 in words is "forty million, two hundred twenty-one thousand, twenty-four".