69448642 has 4 divisors (see below), whose sum is σ = 104172966. Its totient is φ = 34724320.

The previous prime is 69448583. The next prime is 69448669. The reversal of 69448642 is 24684496.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48846121 + 20602521 = 6989^2 + 4539^2 .

It is a super-2 number, since 2×69448642² = 9646227751288328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17362159 + ... + 17362162.

Almost surely, 2^69448642 is an apocalyptic number.

69448642 is a deficient number, since it is larger than the sum of its proper divisors (34724324).

69448642 is a wasteful number, since it uses less digits than its factorization.

69448642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34724323.

The product of its digits is 331776, while the sum is 43.

The square root of 69448642 is about 8333.5851828610. The cubic root of 69448642 is about 411.0436272046.

The spelling of 69448642 in words is "sixty-nine million, four hundred forty-eight thousand, six hundred forty-two".