40134220 has 24 divisors (see below), whose sum is σ = 96322464. Its totient is φ = 13760256.

The previous prime is 40134217. The next prime is 40134221. The reversal of 40134220 is 2243104.

It is a super-2 number, since 2×40134220² = 3221511230016800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40134194 and 40134203.

It is not an unprimeable number, because it can be changed into a prime (40134221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 143197 + ... + 143476.

It is an arithmetic number, because the mean of its divisors is an integer number (4013436).

Almost surely, 2^40134220 is an apocalyptic number.

It is an amenable number.

40134220 is an abundant number, since it is smaller than the sum of its proper divisors (56188244).

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

40134220 is a wasteful number, since it uses less digits than its factorization.

40134220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286689 (or 286687 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40134220 is about 6335.1574566067. The cubic root of 40134220 is about 342.3772839000.

Adding to 40134220 its reverse (2243104), we get a palindrome (42377324).

The spelling of 40134220 in words is "forty million, one hundred thirty-four thousand, two hundred twenty".