1611442252 has 12 divisors (see below), whose sum is σ = 3222884560. Its totient is φ = 690618096.

The previous prime is 1611442249. The next prime is 1611442271. The reversal of 1611442252 is 2522441161.

1611442252 is an admirable number.

It is a super-2 number, since 2×1611442252² = 5193492263061663008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 57551509 = 1611442252 / (1 + 6 + 1 + 1 + 4 + 4 + 2 + 2 + 5 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 1611442252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28775727 + ... + 28775782.

Almost surely, 2^1611442252 is an apocalyptic number.

It is an amenable number.

1611442252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1611442252 is a wasteful number, since it uses less digits than its factorization.

1611442252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57551520 (or 57551518 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 1611442252 is about 40142.7733471418. The cubic root of 1611442252 is about 1172.3885875744.

The spelling of 1611442252 in words is "one billion, six hundred eleven million, four hundred forty-two thousand, two hundred fifty-two".