40695228 has 72 divisors (see below), whose sum is σ = 118390272. Its totient is φ = 11545632.

The previous prime is 40695209. The next prime is 40695241. The reversal of 40695228 is 82259604.

It is a happy number.

It is a super-2 number, since 2×40695228² = 3312203163943968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40695192 and 40695201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41601 + ... + 42567.

Almost surely, 2^40695228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40695228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59195136).

40695228 is an abundant number, since it is smaller than the sum of its proper divisors (77695044).

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

40695228 is a wasteful number, since it uses less digits than its factorization.

40695228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1146 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 40695228 is about 6379.2811507254. The cubic root of 40695228 is about 343.9651916285.

The spelling of 40695228 in words is "forty million, six hundred ninety-five thousand, two hundred twenty-eight".