40402212 has 24 divisors (see below), whose sum is σ = 94612896. Its totient is φ = 13418688.

The previous prime is 40402177. The next prime is 40402253. The reversal of 40402212 is 21220404.

It is a junction number, because it is equal to n+sod(n) for n = 40402191 and 40402200.

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, 2553 + ... + 9344.

It is an arithmetic number, because the mean of its divisors is an integer number (3942204).

Almost surely, 2^40402212 is an apocalyptic number.

It is an amenable number.

40402212 is an abundant number, since it is smaller than the sum of its proper divisors (54210684).

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

40402212 is a wasteful number, since it uses less digits than its factorization.

40402212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12187 (or 12185 counting only the distinct ones).

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

The square root of 40402212 is about 6356.2734365350. The cubic root of 40402212 is about 343.1376566411.

Adding to 40402212 its reverse (21220404), we get a palindrome (61622616).

The spelling of 40402212 in words is "forty million, four hundred two thousand, two hundred twelve".