1818101376 has 640 divisors, whose sum is σ = 6966812160. Its totient is φ = 457850880.

The previous prime is 1818101357. The next prime is 1818101407. The reversal of 1818101376 is 6731018181.

It is a happy number.

1818101376 is a `hidden beast` number, since 181 + 8 + 101 + 376 = 666.

It is a super-2 number, since 2×1818101376² = 6610985226826186752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1818101376.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 38682985 + ... + 38683031.

It is an arithmetic number, because the mean of its divisors is an integer number (10885644).

Almost surely, 2^1818101376 is an apocalyptic number.

1818101376 is a gapful number since it is divisible by the number (16) 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 1818101376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3483406080).

1818101376 is an abundant number, since it is smaller than the sum of its proper divisors (5148710784).

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

1818101376 is a wasteful number, since it uses less digits than its factorization.

1818101376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 1818101376 is about 42639.1999924952. The cubic root of 1818101376 is about 1220.5044442653.

The spelling of 1818101376 in words is "one billion, eight hundred eighteen million, one hundred one thousand, three hundred seventy-six".