1618630674 has 8 divisors (see below), whose sum is σ = 3237261360. Its totient is φ = 539543556.

The previous prime is 1618630667. The next prime is 1618630703. The reversal of 1618630674 is 4760368161.

It is a sphenic number, since it is the product of 3 distinct primes.

1618630674 is an admirable 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, 134885884 + ... + 134885895.

It is an arithmetic number, because the mean of its divisors is an integer number (404657670).

Almost surely, 2^1618630674 is an apocalyptic number.

1618630674 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.

1618630674 is a wasteful number, since it uses less digits than its factorization.

1618630674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269771784.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1618630674 is about 40232.2094098746. The cubic root of 1618630674 is about 1174.1292898095.

The spelling of 1618630674 in words is "one billion, six hundred eighteen million, six hundred thirty thousand, six hundred seventy-four".