40426751 has 4 divisors (see below), whose sum is σ = 41366952. Its totient is φ = 39486552.

The previous prime is 40426747. The next prime is 40426753. The reversal of 40426751 is 15762404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40426751 - 2² = 40426747 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 (40426753) 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 3 ways as a sum of consecutive naturals, for example, 470036 + ... + 470121.

It is an arithmetic number, because the mean of its divisors is an integer number (10341738).

Almost surely, 2^40426751 is an apocalyptic number.

40426751 is a deficient number, since it is larger than the sum of its proper divisors (940201).

40426751 is an equidigital number, since it uses as much as digits as its factorization.

40426751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940200.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40426751 is about 6358.2034412246. The cubic root of 40426751 is about 343.2071128283.

The spelling of 40426751 in words is "forty million, four hundred twenty-six thousand, seven hundred fifty-one".