36431668 has 36 divisors (see below), whose sum is σ = 78909600. Its totient is φ = 14410656.

The previous prime is 36431653. The next prime is 36431669. The reversal of 36431668 is 86613463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36431669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 883 + ... + 8581.

Almost surely, 2^36431668 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 36431668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39454800).

36431668 is an abundant number, since it is smaller than the sum of its proper divisors (42477932).

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

36431668 is a wasteful number, since it uses less digits than its factorization.

36431668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7736 (or 7721 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 36431668 is about 6035.8651409719. The cubic root of 36431668 is about 331.5072406467.

The spelling of 36431668 in words is "thirty-six million, four hundred thirty-one thousand, six hundred sixty-eight".