69440481 has 12 divisors (see below), whose sum is σ = 109421520. Its totient is φ = 42085080.

The previous prime is 69440431. The next prime is 69440491. The reversal of 69440481 is 18404496.

It is a happy number.

It is not a de Polignac number, because 69440481 - 2⁷ = 69440353 is a prime.

It is a super-2 number, since 2×69440481² = 9643960803022722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69440401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350611 + ... + 350808.

It is an arithmetic number, because the mean of its divisors is an integer number (9118460).

Almost surely, 2^69440481 is an apocalyptic number.

It is an amenable number.

69440481 is a deficient number, since it is larger than the sum of its proper divisors (39981039).

69440481 is a wasteful number, since it uses less digits than its factorization.

69440481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701436 (or 701433 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 69440481 is about 8333.0955232734. The cubic root of 69440481 is about 411.0275258173.

The spelling of 69440481 in words is "sixty-nine million, four hundred forty thousand, four hundred eighty-one".