40625312 has 72 divisors (see below), whose sum is σ = 100246356. Its totient is φ = 16063488.

The previous prime is 40625309. The next prime is 40625323. The reversal of 40625312 is 21352604.

It can be written as a sum of positive squares in 2 ways, for example, as 40398736 + 226576 = 6356^2 + 476^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19388 + ... + 21380.

Almost surely, 2^40625312 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 40625312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50123178).

40625312 is an abundant number, since it is smaller than the sum of its proper divisors (59621044).

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

40625312 is a wasteful number, since it uses less digits than its factorization.

40625312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40625312 is about 6373.7988672377. The cubic root of 40625312 is about 343.7680968104.

Adding to 40625312 its reverse (21352604), we get a palindrome (61977916).

The spelling of 40625312 in words is "forty million, six hundred twenty-five thousand, three hundred twelve".