40426228 has 6 divisors (see below), whose sum is σ = 70745906. Its totient is φ = 20213112.

The previous prime is 40426219. The next prime is 40426273. The reversal of 40426228 is 82262404.

It can be written as a sum of positive squares in only one way, i.e., 24088464 + 16337764 = 4908^2 + 4042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40426196 and 40426205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053275 + ... + 5053282.

Almost surely, 2^40426228 is an apocalyptic number.

It is an amenable number.

40426228 is a deficient number, since it is larger than the sum of its proper divisors (30319678).

40426228 is a wasteful number, since it uses less digits than its factorization.

40426228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106561 (or 10106559 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 40426228 is about 6358.1623131216. The cubic root of 40426228 is about 343.2056328009.

The spelling of 40426228 in words is "forty million, four hundred twenty-six thousand, two hundred twenty-eight".