67040402 has 64 divisors (see below), whose sum is σ = 125193600. Its totient is φ = 26503680.

The previous prime is 67040399. The next prime is 67040443. The reversal of 67040402 is 20404076.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489278 + ... + 489414.

It is an arithmetic number, because the mean of its divisors is an integer number (1956150).

Almost surely, 2^67040402 is an apocalyptic number.

67040402 is a deficient number, since it is larger than the sum of its proper divisors (58153198).

67040402 is a wasteful number, since it uses less digits than its factorization.

67040402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 67040402 is about 8187.8203448781. The cubic root of 67040402 is about 406.2364327777.

Adding to 67040402 its reverse (20404076), we get a palindrome (87444478).

The spelling of 67040402 in words is "sixty-seven million, forty thousand, four hundred two".