40021246 has 8 divisors (see below), whose sum is σ = 61016184. Its totient is φ = 19682520.

The previous prime is 40021243. The next prime is 40021249. The reversal of 40021246 is 64212004.

It is an interprime number because it is at equal distance from previous prime (40021243) and next prime (40021249).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40021243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163900 + ... + 164143.

It is an arithmetic number, because the mean of its divisors is an integer number (7627023).

Almost surely, 2^40021246 is an apocalyptic number.

40021246 is a deficient number, since it is larger than the sum of its proper divisors (20994938).

40021246 is a wasteful number, since it uses less digits than its factorization.

40021246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328106.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 40021246 is about 6326.2347411395. The cubic root of 40021246 is about 342.0557288664.

The spelling of 40021246 in words is "forty million, twenty-one thousand, two hundred forty-six".