1618958352 has 80 divisors (see below), whose sum is σ = 4648684608. Its totient is φ = 481328640.

The previous prime is 1618958329. The next prime is 1618958357. The reversal of 1618958352 is 2538598161.

It is a happy number.

It is a super-2 number, since 2×1618958352² = 5242052291021111808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1618958357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 943 + ... + 56910.

Almost surely, 2^1618958352 is an apocalyptic number.

1618958352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1618958352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2324342304).

1618958352 is an abundant number, since it is smaller than the sum of its proper divisors (3029726256).

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

1618958352 is a wasteful number, since it uses less digits than its factorization.

1618958352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57928 (or 57922 counting only the distinct ones).

The product of its digits is 518400, while the sum is 48.

The square root of 1618958352 is about 40236.2815379354. The cubic root of 1618958352 is about 1174.2085152899.

The spelling of 1618958352 in words is "one billion, six hundred eighteen million, nine hundred fifty-eight thousand, three hundred fifty-two".