42276621 has 4 divisors (see below), whose sum is σ = 56368832. Its totient is φ = 28184412.

The previous prime is 42276601. The next prime is 42276623. The reversal of 42276621 is 12667224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42276621 - 2⁶ = 42276557 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 (42276623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7046101 + ... + 7046106.

It is an arithmetic number, because the mean of its divisors is an integer number (14092208).

Almost surely, 2^42276621 is an apocalyptic number.

It is an amenable number.

42276621 is a deficient number, since it is larger than the sum of its proper divisors (14092211).

42276621 is a wasteful number, since it uses less digits than its factorization.

42276621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14092210.

The product of its digits is 8064, while the sum is 30.

The square root of 42276621 is about 6502.0474467663. The cubic root of 42276621 is about 348.3641237609.

The spelling of 42276621 in words is "forty-two million, two hundred seventy-six thousand, six hundred twenty-one".