40450836 has 48 divisors (see below), whose sum is σ = 99437184. Its totient is φ = 12773376.

The previous prime is 40450801. The next prime is 40450841. The reversal of 40450836 is 63805404.

40450836 = 335² + 336² + ... + 541².

40450836 is a Rhonda number in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30540 + ... + 31836.

It is an arithmetic number, because the mean of its divisors is an integer number (2071608).

Almost surely, 2^40450836 is an apocalyptic number.

40450836 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40450836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49718592).

40450836 is an abundant number, since it is smaller than the sum of its proper divisors (58986348).

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

40450836 is a wasteful number, since it uses less digits than its factorization.

40450836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 1438 counting only the distinct ones).

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

The square root of 40450836 is about 6360.0971690690. The cubic root of 40450836 is about 343.2752566694.

The spelling of 40450836 in words is "forty million, four hundred fifty thousand, eight hundred thirty-six".