40155355 has 8 divisors (see below), whose sum is σ = 50281632. Its totient is φ = 30727488.

The previous prime is 40155347. The next prime is 40155361. The reversal of 40155355 is 55355104.

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

It is a cyclic number.

It is not a de Polignac number, because 40155355 - 2³ = 40155347 is a prime.

It is a super-2 number, since 2×40155355² = 3224905070352050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174474 + ... + 174703.

It is an arithmetic number, because the mean of its divisors is an integer number (6285204).

Almost surely, 2^40155355 is an apocalyptic number.

40155355 is a deficient number, since it is larger than the sum of its proper divisors (10126277).

40155355 is a wasteful number, since it uses less digits than its factorization.

40155355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349205.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 40155355 is about 6336.8253092538. The cubic root of 40155355 is about 342.4373728886.

The spelling of 40155355 in words is "forty million, one hundred fifty-five thousand, three hundred fifty-five".