69453940 has 24 divisors (see below), whose sum is σ = 147361032. Its totient is φ = 27494400.

The previous prime is 69453913. The next prime is 69453947. The reversal of 69453940 is 4935496.

It can be written as a sum of positive squares in 4 ways, for example, as 1094116 + 68359824 = 1046^2 + 8268^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 69453893 and 69453902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69453947) 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 7 ways as a sum of consecutive naturals, for example, 15961 + ... + 19840.

It is an arithmetic number, because the mean of its divisors is an integer number (6140043).

Almost surely, 2^69453940 is an apocalyptic number.

It is an amenable number.

69453940 is an abundant number, since it is smaller than the sum of its proper divisors (77907092).

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

69453940 is a wasteful number, since it uses less digits than its factorization.

69453940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35907 (or 35905 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 69453940 is about 8333.9030471922. The cubic root of 69453940 is about 411.0540793109.

The spelling of 69453940 in words is "sixty-nine million, four hundred fifty-three thousand, nine hundred forty".