67040451 has 12 divisors (see below), whose sum is σ = 97170528. Its totient is φ = 44539344.

The previous prime is 67040447. The next prime is 67040473. The reversal of 67040451 is 15404076.

It is not a de Polignac number, because 67040451 - 2² = 67040447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67040551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10075 + ... + 15348.

It is an arithmetic number, because the mean of its divisors is an integer number (8097544).

Almost surely, 2^67040451 is an apocalyptic number.

67040451 is a deficient number, since it is larger than the sum of its proper divisors (30130077).

67040451 is a wasteful number, since it uses less digits than its factorization.

67040451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25722 (or 25719 counting only the distinct ones).

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

The square root of 67040451 is about 8187.8233371269. The cubic root of 67040451 is about 406.2365317507.

The spelling of 67040451 in words is "sixty-seven million, forty thousand, four hundred fifty-one".