69740280 has 48 divisors (see below), whose sum is σ = 226657080. Its totient is φ = 18597312.

The previous prime is 69740267. The next prime is 69740287. The reversal of 69740280 is 8204796.

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 (69740287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96502 + ... + 97221.

Almost surely, 2^69740280 is an apocalyptic number.

69740280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69740280 is an abundant number, since it is smaller than the sum of its proper divisors (156916800).

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

69740280 is a wasteful number, since it uses less digits than its factorization.

69740280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193740 (or 193733 counting only the distinct ones).

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

The square root of 69740280 is about 8351.0646027917. The cubic root of 69740280 is about 411.6181934289.

The spelling of 69740280 in words is "sixty-nine million, seven hundred forty thousand, two hundred eighty".