40221030 has 16 divisors (see below), whose sum is σ = 96530544. Its totient is φ = 10725600.

The previous prime is 40221023. The next prime is 40221047. The reversal of 40221030 is 3012204.

40221030 is nontrivially palindromic in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 40220997 and 40221015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670321 + ... + 670380.

It is an arithmetic number, because the mean of its divisors is an integer number (6033159).

Almost surely, 2^40221030 is an apocalyptic number.

40221030 is an abundant number, since it is smaller than the sum of its proper divisors (56309514).

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

40221030 is a wasteful number, since it uses less digits than its factorization.

40221030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340711.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40221030 is about 6342.0052034037. The cubic root of 40221030 is about 342.6239592509.

Adding to 40221030 its reverse (3012204), we get a palindrome (43233234).

The spelling of 40221030 in words is "forty million, two hundred twenty-one thousand, thirty".