40787500 has 72 divisors (see below), whose sum is σ = 96462576. Its totient is φ = 15000000.

The previous prime is 40787491. The next prime is 40787507. The reversal of 40787500 is 578704.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40787507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162375 + ... + 162625.

It is an arithmetic number, because the mean of its divisors is an integer number (1339758).

Almost surely, 2^40787500 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 40787500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48231288).

40787500 is an abundant number, since it is smaller than the sum of its proper divisors (55675076).

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

40787500 is a wasteful number, since it uses less digits than its factorization.

40787500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 40787500 is about 6386.5092186577. The cubic root of 40787500 is about 344.2249632703.

The spelling of 40787500 in words is "forty million, seven hundred eighty-seven thousand, five hundred".