40156336 has 40 divisors (see below), whose sum is σ = 85494528. Its totient is φ = 18120000.

The previous prime is 40156309. The next prime is 40156339. The reversal of 40156336 is 63365104.

It is a super-2 number, since 2×40156336² = 3225062641889792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40156339) 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, 25821 + ... + 27331.

Almost surely, 2^40156336 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 40156336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42747264).

40156336 is an abundant number, since it is smaller than the sum of its proper divisors (45338192).

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

40156336 is a wasteful number, since it uses less digits than its factorization.

40156336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 40156336 is about 6336.9027134713. The cubic root of 40156336 is about 342.4401614608.

The spelling of 40156336 in words is "forty million, one hundred fifty-six thousand, three hundred thirty-six".