40312655 has 8 divisors (see below), whose sum is σ = 48845472. Its totient is φ = 31936608.

The previous prime is 40312603. The next prime is 40312681. The reversal of 40312655 is 55621304.

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 40312655 - 2¹⁰ = 40311631 is a prime.

It is a super-2 number, since 2×40312655² = 3250220306298050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 38624 + ... + 39653.

It is an arithmetic number, because the mean of its divisors is an integer number (6105684).

Almost surely, 2^40312655 is an apocalyptic number.

40312655 is a deficient number, since it is larger than the sum of its proper divisors (8532817).

40312655 is a wasteful number, since it uses less digits than its factorization.

40312655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78385.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 40312655 is about 6349.2247558265. The cubic root of 40312655 is about 342.8839319759.

Adding to 40312655 its reverse (55621304), we get a palindrome (95933959).

The spelling of 40312655 in words is "forty million, three hundred twelve thousand, six hundred fifty-five".