42726051 has 6 divisors (see below), whose sum is σ = 61715420. Its totient is φ = 28484028.

The previous prime is 42726037. The next prime is 42726107. The reversal of 42726051 is 15062724.

It is not a de Polignac number, because 42726051 - 2¹⁸ = 42463907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42726001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2373661 + ... + 2373678.

Almost surely, 2^42726051 is an apocalyptic number.

42726051 is a deficient number, since it is larger than the sum of its proper divisors (18989369).

42726051 is a wasteful number, since it uses less digits than its factorization.

42726051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4747345 (or 4747342 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 42726051 is about 6536.5167329396. The cubic root of 42726051 is about 349.5942263454.

Adding to 42726051 its reverse (15062724), we get a palindrome (57788775).

The spelling of 42726051 in words is "forty-two million, seven hundred twenty-six thousand, fifty-one".