69742080 has 160 divisors (see below), whose sum is σ = 247975200. Its totient is φ = 18579456.

The previous prime is 69742073. The next prime is 69742081. The reversal of 69742080 is 8024796.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69742081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68616 + ... + 69624.

It is an arithmetic number, because the mean of its divisors is an integer number (1549845).

Almost surely, 2^69742080 is an apocalyptic number.

69742080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69742080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123987600).

69742080 is an abundant number, since it is smaller than the sum of its proper divisors (178233120).

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

69742080 is a wasteful number, since it uses less digits than its factorization.

69742080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 69742080 is about 8351.1723727869. The cubic root of 69742080 is about 411.6217346936.

The spelling of 69742080 in words is "sixty-nine million, seven hundred forty-two thousand, eighty".