40772228 has 24 divisors (see below), whose sum is σ = 81681600. Its totient is φ = 17444448.

The previous prime is 40772227. The next prime is 40772267. The reversal of 40772228 is 82227704.

It is a happy number.

It is a super-3 number, since 3×40772228³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40772194 and 40772203.

It is not an unprimeable number, because it can be changed into a prime (40772227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27818 + ... + 29246.

It is an arithmetic number, because the mean of its divisors is an integer number (3403400).

Almost surely, 2^40772228 is an apocalyptic number.

It is an amenable number.

40772228 is an abundant number, since it is smaller than the sum of its proper divisors (40909372).

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

40772228 is a wasteful number, since it uses less digits than its factorization.

40772228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459 (or 2457 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 40772228 is about 6385.3134613737. The cubic root of 40772228 is about 344.1819953684.

The spelling of 40772228 in words is "forty million, seven hundred seventy-two thousand, two hundred twenty-eight".