67542404 has 12 divisors (see below), whose sum is σ = 118499724. Its totient is φ = 33685344.

The previous prime is 67542289. The next prime is 67542407. The reversal of 67542404 is 40424576.

It can be written as a sum of positive squares in 2 ways, for example, as 33085504 + 34456900 = 5752^2 + 5870^2 .

It is not an unprimeable number, because it can be changed into a prime (67542407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19679 + ... + 22854.

It is an arithmetic number, because the mean of its divisors is an integer number (9874977).

Almost surely, 2^67542404 is an apocalyptic number.

It is an amenable number.

67542404 is a deficient number, since it is larger than the sum of its proper divisors (50957320).

67542404 is a wasteful number, since it uses less digits than its factorization.

67542404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42934 (or 42932 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 67542404 is about 8218.4185826715. The cubic root of 67542404 is about 407.2478855043.

The spelling of 67542404 in words is "sixty-seven million, five hundred forty-two thousand, four hundred four".