40155002 has 8 divisors (see below), whose sum is σ = 60765876. Its totient is φ = 19899712.

The previous prime is 40154981. The next prime is 40155007. The reversal of 40155002 is 20055104.

It can be written as a sum of positive squares in 2 ways, for example, as 40081561 + 73441 = 6331^2 + 271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40155002² = 3224848371240008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40155007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88613 + ... + 89064.

Almost surely, 2^40155002 is an apocalyptic number.

40155002 is a deficient number, since it is larger than the sum of its proper divisors (20610874).

40155002 is a wasteful number, since it uses less digits than its factorization.

40155002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177792.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 40155002 is about 6336.7974561288. The cubic root of 40155002 is about 342.4363694463.

The spelling of 40155002 in words is "forty million, one hundred fifty-five thousand, two".