40626551 has 8 divisors (see below), whose sum is σ = 46842144. Its totient is φ = 34513920.

The previous prime is 40626527. The next prime is 40626557. The reversal of 40626551 is 15562604.

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

It is not a de Polignac number, because 40626551 - 2¹⁰ = 40625527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40626557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24890 + ... + 26471.

It is an arithmetic number, because the mean of its divisors is an integer number (5855268).

Almost surely, 2^40626551 is an apocalyptic number.

40626551 is a deficient number, since it is larger than the sum of its proper divisors (6215593).

40626551 is a wasteful number, since it uses less digits than its factorization.

40626551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51481.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 40626551 is about 6373.8960612799. The cubic root of 40626551 is about 343.7715915473.

The spelling of 40626551 in words is "forty million, six hundred twenty-six thousand, five hundred fifty-one".