1618893130 has 16 divisors (see below), whose sum is σ = 2936954880. Its totient is φ = 642457872.

The previous prime is 1618893121. The next prime is 1618893137. The reversal of 1618893130 is 313988161.

It is a super-2 number, since 2×1618893130² = 5241629932722393800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1618893137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636090 + ... + 638629.

It is an arithmetic number, because the mean of its divisors is an integer number (183559680).

Almost surely, 2^1618893130 is an apocalyptic number.

1618893130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1618893130 is a deficient number, since it is larger than the sum of its proper divisors (1318061750).

1618893130 is a wasteful number, since it uses less digits than its factorization.

1618893130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274853.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1618893130 is about 40235.4710423527. The cubic root of 1618893130 is about 1174.1927468678.

The spelling of 1618893130 in words is "one billion, six hundred eighteen million, eight hundred ninety-three thousand, one hundred thirty".