1400660085 has 16 divisors (see below), whose sum is σ = 2444788800. Its totient is φ = 679107840.

The previous prime is 1400660077. The next prime is 1400660089. The reversal of 1400660085 is 5800660041.

It is not a de Polignac number, because 1400660085 - 2³ = 1400660077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400660089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4244260 + ... + 4244589.

It is an arithmetic number, because the mean of its divisors is an integer number (152799300).

Almost surely, 2^1400660085 is an apocalyptic number.

1400660085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400660085 is a deficient number, since it is larger than the sum of its proper divisors (1044128715).

1400660085 is a wasteful number, since it uses less digits than its factorization.

1400660085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8488868.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1400660085 is about 37425.3935851048. The cubic root of 1400660085 is about 1118.8647310735.

The spelling of 1400660085 in words is "one billion, four hundred million, six hundred sixty thousand, eighty-five".