1618888412 has 12 divisors (see below), whose sum is σ = 2833890696. Its totient is φ = 809205360.

The previous prime is 1618888399. The next prime is 1618888421. The reversal of 1618888412 is 2148888161.

It is a congruent number.

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, 44003 + ... + 71930.

It is an arithmetic number, because the mean of its divisors is an integer number (236157558).

Almost surely, 2^1618888412 is an apocalyptic number.

It is an amenable number.

1618888412 is a deficient number, since it is larger than the sum of its proper divisors (1215002284).

1618888412 is a wasteful number, since it uses less digits than its factorization.

1618888412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119428 (or 119426 counting only the distinct ones).

The product of its digits is 196608, while the sum is 47.

The square root of 1618888412 is about 40235.4124124508. The cubic root of 1618888412 is about 1174.1916062022.

The spelling of 1618888412 in words is "one billion, six hundred eighteen million, eight hundred eighty-eight thousand, four hundred twelve".