40351860 has 36 divisors (see below), whose sum is σ = 122401188. Its totient is φ = 10760448.

The previous prime is 40351849. The next prime is 40351873. The reversal of 40351860 is 6815304.

It can be written as a sum of positive squares in 2 ways, for example, as 15968016 + 24383844 = 3996^2 + 4938^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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, 111909 + ... + 112268.

It is an arithmetic number, because the mean of its divisors is an integer number (3400033).

Almost surely, 2^40351860 is an apocalyptic number.

It is an amenable number.

40351860 is an abundant number, since it is smaller than the sum of its proper divisors (82049328).

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

40351860 is a wasteful number, since it uses less digits than its factorization.

40351860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224192 (or 224187 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 40351860 is about 6352.3113903523. The cubic root of 40351860 is about 342.9950501769.

The spelling of 40351860 in words is "forty million, three hundred fifty-one thousand, eight hundred sixty".