42412691 has 6 divisors (see below), whose sum is σ = 42811692. Its totient is φ = 42014960.

The previous prime is 42412687. The next prime is 42412771. The reversal of 42412691 is 19621424.

It is not a de Polignac number, because 42412691 - 2² = 42412687 is a prime.

It is a super-2 number, since 2×42412691² = 3597672715722962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42415691) 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, 74255 + ... + 74823.

It is an arithmetic number, because the mean of its divisors is an integer number (7135282).

Almost surely, 2^42412691 is an apocalyptic number.

42412691 is a deficient number, since it is larger than the sum of its proper divisors (399001).

42412691 is an frugal number, since it uses more digits than its factorization.

42412691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 700 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 42412691 is about 6512.5026679457. The cubic root of 42412691 is about 348.7374675507.

The spelling of 42412691 in words is "forty-two million, four hundred twelve thousand, six hundred ninety-one".