69445990 has 8 divisors (see below), whose sum is σ = 125002800. Its totient is φ = 27778392.

The previous prime is 69445973. The next prime is 69445997. The reversal of 69445990 is 9954496.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 69445990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69445997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3472290 + ... + 3472309.

It is an arithmetic number, because the mean of its divisors is an integer number (15625350).

Almost surely, 2^69445990 is an apocalyptic number.

69445990 is a deficient number, since it is larger than the sum of its proper divisors (55556810).

69445990 is a wasteful number, since it uses less digits than its factorization.

69445990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6944606.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 69445990 is about 8333.4260661507. The cubic root of 69445990 is about 411.0383950333.

The spelling of 69445990 in words is "sixty-nine million, four hundred forty-five thousand, nine hundred ninety".