40352312 has 64 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 14509440.

The previous prime is 40352303. The next prime is 40352357. The reversal of 40352312 is 21325304.

It is a happy number.

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, 5489 + ... + 10527.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^40352312 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 40352312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50803200).

40352312 is an abundant number, since it is smaller than the sum of its proper divisors (61254088).

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

40352312 is a wasteful number, since it uses less digits than its factorization.

40352312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076 (or 5072 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40352312 is about 6352.3469678537. The cubic root of 40352312 is about 342.9963308546.

Adding to 40352312 its reverse (21325304), we get a palindrome (61677616).

The spelling of 40352312 in words is "forty million, three hundred fifty-two thousand, three hundred twelve".