3887400818 has 32 divisors (see below), whose sum is σ = 6776050944. Its totient is φ = 1638185472.

The previous prime is 3887400799. The next prime is 3887400827. The reversal of 3887400818 is 8180047883.

It is a happy number.

It is a super-2 number, since 2×3887400818² = 30223770239574138248, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338771 + ... + 350057.

It is an arithmetic number, because the mean of its divisors is an integer number (211751592).

Almost surely, 2^3887400818 is an apocalyptic number.

3887400818 is a deficient number, since it is larger than the sum of its proper divisors (2888650126).

3887400818 is a wasteful number, since it uses less digits than its factorization.

3887400818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11706.

The product of its (nonzero) digits is 344064, while the sum is 47.

The square root of 3887400818 is about 62349.0241944491. The cubic root of 3887400818 is about 1572.3640555714.

The spelling of 3887400818 in words is "three billion, eight hundred eighty-seven million, four hundred thousand, eight hundred eighteen".