69146990 has 64 divisors (see below), whose sum is σ = 145566720. Its totient is φ = 23370240.

The previous prime is 69146989. The next prime is 69146999. The reversal of 69146990 is 9964196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69146999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192431 + ... + 192789.

It is an arithmetic number, because the mean of its divisors is an integer number (2274480).

Almost surely, 2^69146990 is an apocalyptic number.

69146990 is an abundant number, since it is smaller than the sum of its proper divisors (76419730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69146990 is a wasteful number, since it uses less digits than its factorization.

69146990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 69146990 is about 8315.4669141306. The cubic root of 69146990 is about 410.4476372081.

The spelling of 69146990 in words is "sixty-nine million, one hundred forty-six thousand, nine hundred ninety".