440869402 has 4 divisors (see below), whose sum is σ = 661304106. Its totient is φ = 220434700.

The previous prime is 440869379. The next prime is 440869409. The reversal of 440869402 is 204968044.

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., 337420161 + 103449241 = 18369^2 + 10171^2 .

It is not an unprimeable number, because it can be changed into a prime (440869409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110217349 + ... + 110217352.

Almost surely, 2^440869402 is an apocalyptic number.

440869402 is a deficient number, since it is larger than the sum of its proper divisors (220434704).

440869402 is a wasteful number, since it uses less digits than its factorization.

440869402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220434703.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 440869402 is about 20996.8902935649. The cubic root of 440869402 is about 761.0911162753.

The spelling of 440869402 in words is "four hundred forty million, eight hundred sixty-nine thousand, four hundred two".