42651807 has 16 divisors (see below), whose sum is σ = 62533632. Its totient is φ = 25643520.

The previous prime is 42651797. The next prime is 42651811. The reversal of 42651807 is 70815624.

42651807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42651807 - 2⁸ = 42651551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42651887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898 + ... + 9279.

It is an arithmetic number, because the mean of its divisors is an integer number (3908352).

Almost surely, 2^42651807 is an apocalyptic number.

42651807 is a deficient number, since it is larger than the sum of its proper divisors (19881825).

42651807 is a wasteful number, since it uses less digits than its factorization.

42651807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10318.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 42651807 is about 6530.8350920843. The cubic root of 42651807 is about 349.3916152014.

The spelling of 42651807 in words is "forty-two million, six hundred fifty-one thousand, eight hundred seven".