440249402 has 4 divisors (see below), whose sum is σ = 660374106. Its totient is φ = 220124700.

The previous prime is 440249393. The next prime is 440249419. The reversal of 440249402 is 204942044.

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., 431434441 + 8814961 = 20771^2 + 2969^2 .

It is a super-2 number, since 2×440249402² = 387639071922715208, 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, 110062349 + ... + 110062352.

Almost surely, 2^440249402 is an apocalyptic number.

440249402 is a deficient number, since it is larger than the sum of its proper divisors (220124704).

440249402 is a wasteful number, since it uses less digits than its factorization.

440249402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220124703.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 440249402 is about 20982.1210081345. The cubic root of 440249402 is about 760.7341716678.

The spelling of 440249402 in words is "four hundred forty million, two hundred forty-nine thousand, four hundred two".