69290140 has 24 divisors (see below), whose sum is σ = 147505680. Its totient is φ = 27335808.

The previous prime is 69290119. The next prime is 69290167. The reversal of 69290140 is 4109296.

It is a happy number.

It is a super-2 number, since 2×69290140² = 9602247002439200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22270 + ... + 25189.

It is an arithmetic number, because the mean of its divisors is an integer number (6146070).

Almost surely, 2^69290140 is an apocalyptic number.

It is an amenable number.

69290140 is an abundant number, since it is smaller than the sum of its proper divisors (78215540).

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

69290140 is a wasteful number, since it uses less digits than its factorization.

69290140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47541 (or 47539 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 69290140 is about 8324.0699180149. The cubic root of 69290140 is about 410.7306819703.

The spelling of 69290140 in words is "sixty-nine million, two hundred ninety thousand, one hundred forty".