1000550404 has 18 divisors (see below), whose sum is σ = 2036835150. Its totient is φ = 428807232.

The previous prime is 1000550399. The next prime is 1000550413. The reversal of 1000550404 is 4040550001.

It can be written as a sum of positive squares in only one way, i.e., 652802500 + 347747904 = 25550^2 + 18648^2 .

It is a super-2 number, since 2×1000550404² = 2002202221889126432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2552229 + ... + 2552620.

Almost surely, 2^1000550404 is an apocalyptic number.

1000550404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1000550404 is an abundant number, since it is smaller than the sum of its proper divisors (1036284746).

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

1000550404 is a wasteful number, since it uses less digits than its factorization.

1000550404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104867 (or 5104858 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1000550404 is about 31631.4780558860. The cubic root of 1000550404 is about 1000.1834343498.

The spelling of 1000550404 in words is "one billion, five hundred fifty thousand, four hundred four".