444400620 has 24 divisors (see below), whose sum is σ = 1244321904. Its totient is φ = 118506816.

The previous prime is 444400603. The next prime is 444400679. The reversal of 444400620 is 26004444.

It is a super-2 number, since 2×444400620² = 394983822112768800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3703279 + ... + 3703398.

It is an arithmetic number, because the mean of its divisors is an integer number (51846746).

Almost surely, 2^444400620 is an apocalyptic number.

It is an amenable number.

444400620 is an abundant number, since it is smaller than the sum of its proper divisors (799921284).

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

444400620 is a wasteful number, since it uses less digits than its factorization.

444400620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7406689 (or 7406687 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 444400620 is about 21080.8116542035. The cubic root of 444400620 is about 763.1177443115.

The spelling of 444400620 in words is "four hundred forty-four million, four hundred thousand, six hundred twenty".