1355550444 has 24 divisors (see below), whose sum is σ = 3514390320. Its totient is φ = 451850112.

The previous prime is 1355550431. The next prime is 1355550457. The reversal of 1355550444 is 4440555531.

1355550444 is a `hidden beast` number, since 13 + 55 + 550 + 4 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (1355550431) and next prime (1355550457).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1355550399 and 1355550408.

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, 6275589 + ... + 6275804.

It is an arithmetic number, because the mean of its divisors is an integer number (146432930).

Almost surely, 2^1355550444 is an apocalyptic number.

It is an amenable number.

1355550444 is an abundant number, since it is smaller than the sum of its proper divisors (2158839876).

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

1355550444 is a wasteful number, since it uses less digits than its factorization.

1355550444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12551406 (or 12551398 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 1355550444 is about 36817.8006404511. The cubic root of 1355550444 is about 1106.7220459456.

The spelling of 1355550444 in words is "one billion, three hundred fifty-five million, five hundred fifty thousand, four hundred forty-four".