42000651 has 24 divisors (see below), whose sum is σ = 75638784. Its totient is φ = 21818160.

The previous prime is 42000649. The next prime is 42000653. The reversal of 42000651 is 15600024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42000649) and next prime (42000653).

It is not a de Polignac number, because 42000651 - 2¹ = 42000649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42000653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29611 + ... + 30996.

It is an arithmetic number, because the mean of its divisors is an integer number (3151616).

Almost surely, 2^42000651 is an apocalyptic number.

42000651 is a deficient number, since it is larger than the sum of its proper divisors (33638133).

42000651 is a wasteful number, since it uses less digits than its factorization.

42000651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60631 (or 60628 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 42000651 is about 6480.7909239536. The cubic root of 42000651 is about 347.6044604265.

Adding to 42000651 its reverse (15600024), we get a palindrome (57600675).

The spelling of 42000651 in words is "forty-two million, six hundred fifty-one", and thus it is an aban number.