69297940 has 48 divisors (see below), whose sum is σ = 156784320. Its totient is φ = 25643520.

The previous prime is 69297937. The next prime is 69297973. The reversal of 69297940 is 4979296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14220 + ... + 18460.

It is an arithmetic number, because the mean of its divisors is an integer number (3266340).

Almost surely, 2^69297940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69297940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78392160).

69297940 is an abundant number, since it is smaller than the sum of its proper divisors (87486380).

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

69297940 is a wasteful number, since it uses less digits than its factorization.

69297940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312 (or 4310 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 69297940 is about 8324.5384256426. The cubic root of 69297940 is about 410.7460933940.

The spelling of 69297940 in words is "sixty-nine million, two hundred ninety-seven thousand, nine hundred forty".