40068210 has 96 divisors (see below), whose sum is σ = 119111040. Its totient is φ = 8446464.

The previous prime is 40068209. The next prime is 40068229. The reversal of 40068210 is 1286004.

It is a super-2 number, since 2×40068210² = 3210922905208200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34926 + ... + 36054.

It is an arithmetic number, because the mean of its divisors is an integer number (1240740).

Almost surely, 2^40068210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40068210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59555520).

40068210 is an abundant number, since it is smaller than the sum of its proper divisors (79042830).

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

40068210 is a wasteful number, since it uses less digits than its factorization.

40068210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 1159 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 40068210 is about 6329.9454973957. The cubic root of 40068210 is about 342.1894747076.

The spelling of 40068210 in words is "forty million, sixty-eight thousand, two hundred ten".