40921230 has 32 divisors (see below), whose sum is σ = 112241664. Its totient is φ = 9353376.

The previous prime is 40921229. The next prime is 40921249. The reversal of 40921230 is 3212904.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 40921197 and 40921206.

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 15 ways as a sum of consecutive naturals, for example, 97222 + ... + 97641.

It is an arithmetic number, because the mean of its divisors is an integer number (3507552).

Almost surely, 2^40921230 is an apocalyptic number.

40921230 is an abundant number, since it is smaller than the sum of its proper divisors (71320434).

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

40921230 is a wasteful number, since it uses less digits than its factorization.

40921230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194880.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 40921230 is about 6396.9703766705. The cubic root of 40921230 is about 344.6007563939.

The spelling of 40921230 in words is "forty million, nine hundred twenty-one thousand, two hundred thirty".