42966651 has 32 divisors (see below), whose sum is σ = 72798208. Its totient is φ = 21928320.

The previous prime is 42966643. The next prime is 42966653. The reversal of 42966651 is 15666924.

It is not a de Polignac number, because 42966651 - 2³ = 42966643 is a prime.

It is a super-2 number, since 2×42966651² = 3692266196311602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (42966653) 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 31 ways as a sum of consecutive naturals, for example, 5925 + ... + 11001.

It is an arithmetic number, because the mean of its divisors is an integer number (2274944).

Almost surely, 2^42966651 is an apocalyptic number.

42966651 is a deficient number, since it is larger than the sum of its proper divisors (29831557).

42966651 is a wasteful number, since it uses less digits than its factorization.

42966651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131.

The product of its digits is 77760, while the sum is 39.

The square root of 42966651 is about 6554.8951936701. The cubic root of 42966651 is about 350.2492129852.

The spelling of 42966651 in words is "forty-two million, nine hundred sixty-six thousand, six hundred fifty-one".