4400394426 has 24 divisors (see below), whose sum is σ = 9641317140. Its totient is φ = 1450316736.

The previous prime is 4400394409. The next prime is 4400394437. The reversal of 4400394426 is 6244930044.

It can be written as a sum of positive squares in 2 ways, for example, as 4361942025 + 38452401 = 66045^2 + 6201^2 .

It is a super-2 number, since 2×4400394426² = 38726942208743738952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1371805 + ... + 1375008.

Almost surely, 2^4400394426 is an apocalyptic number.

4400394426 is an abundant number, since it is smaller than the sum of its proper divisors (5240922714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4400394426 is a wasteful number, since it uses less digits than its factorization.

4400394426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746910 (or 2746907 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 4400394426 is about 66335.4688383221. The cubic root of 4400394426 is about 1638.6915036188.

The spelling of 4400394426 in words is "four billion, four hundred million, three hundred ninety-four thousand, four hundred twenty-six".