42054691 has 6 divisors (see below), whose sum is σ = 48920820. Its totient is φ = 36046836.

The previous prime is 42054673. The next prime is 42054697. The reversal of 42054691 is 19645024.

It is not a de Polignac number, because 42054691 - 2⁵ = 42054659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42054697) 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, 429081 + ... + 429178.

It is an arithmetic number, because the mean of its divisors is an integer number (8153470).

Almost surely, 2^42054691 is an apocalyptic number.

42054691 is a deficient number, since it is larger than the sum of its proper divisors (6866129).

42054691 is an equidigital number, since it uses as much as digits as its factorization.

42054691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858273 (or 858266 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 42054691 is about 6484.9588279341. The cubic root of 42054691 is about 347.7534779138.

The spelling of 42054691 in words is "forty-two million, fifty-four thousand, six hundred ninety-one".