40155652 has 6 divisors (see below), whose sum is σ = 70272398. Its totient is φ = 20077824.

The previous prime is 40155623. The next prime is 40155653. The reversal of 40155652 is 25655104.

It can be written as a sum of positive squares in only one way, i.e., 35593156 + 4562496 = 5966^2 + 2136^2 .

It is a super-2 number, since 2×40155652² = 3224952775090208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40155652.

It is not an unprimeable number, because it can be changed into a prime (40155653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5019453 + ... + 5019460.

Almost surely, 2^40155652 is an apocalyptic number.

It is an amenable number.

40155652 is a deficient number, since it is larger than the sum of its proper divisors (30116746).

40155652 is a wasteful number, since it uses less digits than its factorization.

40155652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10038917 (or 10038915 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 40155652 is about 6336.8487436580. The cubic root of 40155652 is about 342.4382171400.

The spelling of 40155652 in words is "forty million, one hundred fifty-five thousand, six hundred fifty-two".