1618236050 has 18 divisors (see below), whose sum is σ = 3010448223. Its totient is φ = 647180640.

The previous prime is 1618236043. The next prime is 1618236073. The reversal of 1618236050 is 506328161.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 1423326529 + 194909521 = 37727^2 + 13961^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=28445.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1618235998 and 1618236016.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 281606 + ... + 287294.

Almost surely, 2^1618236050 is an apocalyptic number.

1618236050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1618236050 is a deficient number, since it is larger than the sum of its proper divisors (1392212173).

1618236050 is an frugal number, since it uses more digits than its factorization.

1618236050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11390 (or 5696 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1618236050 is about 40227.3047817027. The cubic root of 1618236050 is about 1174.0338640352.

Multiplying 1618236050 by its sum of digits (32), we get a square (51783553600 = 227560²).

The spelling of 1618236050 in words is "one billion, six hundred eighteen million, two hundred thirty-six thousand, fifty".