40141540 has 12 divisors (see below), whose sum is σ = 84297276. Its totient is φ = 16056608.

The previous prime is 40141537. The next prime is 40141553. The reversal of 40141540 is 4514104.

It can be written as a sum of positive squares in 2 ways, for example, as 8714304 + 31427236 = 2952^2 + 5606^2 .

It is a super-2 number, since 2×40141540² = 3222686467143200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003519 + ... + 1003558.

It is an arithmetic number, because the mean of its divisors is an integer number (7024773).

Almost surely, 2^40141540 is an apocalyptic number.

It is an amenable number.

40141540 is an abundant number, since it is smaller than the sum of its proper divisors (44155736).

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

40141540 is a wasteful number, since it uses less digits than its factorization.

40141540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007086 (or 2007084 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 40141540 is about 6335.7351586063. The cubic root of 40141540 is about 342.3980978037.

Adding to 40141540 its reverse (4514104), we get a palindrome (44655644).

The spelling of 40141540 in words is "forty million, one hundred forty-one thousand, five hundred forty".