40228536 has 32 divisors (see below), whose sum is σ = 100774800. Its totient is φ = 13382400.

The previous prime is 40228499. The next prime is 40228547. The reversal of 40228536 is 63582204.

It is a congruent number.

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, 13030 + ... + 15818.

Almost surely, 2^40228536 is an apocalyptic number.

It is an amenable number.

40228536 is an abundant number, since it is smaller than the sum of its proper divisors (60546264).

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

40228536 is a wasteful number, since it uses less digits than its factorization.

40228536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399 (or 3395 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 40228536 is about 6342.5969444700. The cubic root of 40228536 is about 342.6452712816.

The spelling of 40228536 in words is "forty million, two hundred twenty-eight thousand, five hundred thirty-six".