1400818194 has 12 divisors (see below), whose sum is σ = 3035106126. Its totient is φ = 466939392.

The previous prime is 1400818193. The next prime is 1400818219. The reversal of 1400818194 is 4918180041.

1400818194 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1259327169 + 141491025 = 35487^2 + 11895^2 .

It is a super-2 number, since 2×1400818194² = 3924583225282843272, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1400818193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38911599 + ... + 38911634.

Almost surely, 2^1400818194 is an apocalyptic number.

1400818194 is an abundant number, since it is smaller than the sum of its proper divisors (1634287932).

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

1400818194 is a wasteful number, since it uses less digits than its factorization.

1400818194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77823241 (or 77823238 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1400818194 is about 37427.5058479723. The cubic root of 1400818194 is about 1118.9068293027.

The spelling of 1400818194 in words is "one billion, four hundred million, eight hundred eighteen thousand, one hundred ninety-four".