1400794191 has 12 divisors (see below), whose sum is σ = 2033965440. Its totient is φ = 928972320.

The previous prime is 1400794189. The next prime is 1400794201. The reversal of 1400794191 is 1914970041.

It is not a de Polignac number, because 1400794191 - 2¹ = 1400794189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400794141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405726 + ... + 409163.

It is an arithmetic number, because the mean of its divisors is an integer number (169497120).

Almost surely, 2^1400794191 is an apocalyptic number.

1400794191 is a deficient number, since it is larger than the sum of its proper divisors (633171249).

1400794191 is a wasteful number, since it uses less digits than its factorization.

1400794191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815086 (or 815083 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1400794191 is about 37427.1851867062. The cubic root of 1400794191 is about 1118.9004384486.

The spelling of 1400794191 in words is "one billion, four hundred million, seven hundred ninety-four thousand, one hundred ninety-one".