68402169 has 48 divisors (see below), whose sum is σ = 115577280. Its totient is φ = 38522880.

The previous prime is 68402153. The next prime is 68402189. The reversal of 68402169 is 96120486.

It is not a de Polignac number, because 68402169 - 2⁴ = 68402153 is a prime.

It is a super-2 number, since 2×68402169² = 9357713447809122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68402119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163042 + ... + 163460.

It is an arithmetic number, because the mean of its divisors is an integer number (2407860).

Almost surely, 2^68402169 is an apocalyptic number.

It is an amenable number.

68402169 is a deficient number, since it is larger than the sum of its proper divisors (47175111).

68402169 is a wasteful number, since it uses less digits than its factorization.

68402169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 68402169 is about 8270.5603800468. The cubic root of 68402169 is about 408.9685933444.

It can be divided in two parts, 6840 and 2169, that added together give a palindrome (9009).

The spelling of 68402169 in words is "sixty-eight million, four hundred two thousand, one hundred sixty-nine".