40131652 has 12 divisors (see below), whose sum is σ = 76615056. Its totient is φ = 18241640.

The previous prime is 40131647. The next prime is 40131673. The reversal of 40131652 is 25613104.

It is a super-2 number, since 2×40131652² = 3221098984498208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 455998 + ... + 456085.

It is an arithmetic number, because the mean of its divisors is an integer number (6384588).

Almost surely, 2^40131652 is an apocalyptic number.

It is an amenable number.

40131652 is a deficient number, since it is larger than the sum of its proper divisors (36483404).

40131652 is a wasteful number, since it uses less digits than its factorization.

40131652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912098 (or 912096 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 40131652 is about 6334.9547748978. The cubic root of 40131652 is about 342.3699813735.

Adding to 40131652 its reverse (25613104), we get a palindrome (65744756).

It can be divided in two parts, 4013 and 1652, that added together give a palindrome (5665).

The spelling of 40131652 in words is "forty million, one hundred thirty-one thousand, six hundred fifty-two".