1611236242 has 48 divisors (see below), whose sum is σ = 3070448640. Its totient is φ = 620642880.

The previous prime is 1611236171. The next prime is 1611236243. The reversal of 1611236242 is 2426321161.

It is a self number, because there is not a number n which added to its sum of digits gives 1611236242.

It is not an unprimeable number, because it can be changed into a prime (1611236243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145423 + ... + 156109.

It is an arithmetic number, because the mean of its divisors is an integer number (63967680).

Almost surely, 2^1611236242 is an apocalyptic number.

1611236242 is a deficient number, since it is larger than the sum of its proper divisors (1459212398).

1611236242 is a wasteful number, since it uses less digits than its factorization.

1611236242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10807 (or 10796 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1611236242 is about 40140.2072989166. The cubic root of 1611236242 is about 1172.3386252780.

The spelling of 1611236242 in words is "one billion, six hundred eleven million, two hundred thirty-six thousand, two hundred forty-two".