1400090385 has 32 divisors (see below), whose sum is σ = 2345333760. Its totient is φ = 711868608.

The previous prime is 1400090371. The next prime is 1400090389. The reversal of 1400090385 is 5830900041.

It is not a de Polignac number, because 1400090385 - 2⁵ = 1400090353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1400090389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99306 + ... + 112524.

It is an arithmetic number, because the mean of its divisors is an integer number (73291680).

Almost surely, 2^1400090385 is an apocalyptic number.

1400090385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400090385 is a deficient number, since it is larger than the sum of its proper divisors (945243375).

1400090385 is a wasteful number, since it uses less digits than its factorization.

1400090385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13557.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1400090385 is about 37417.7816686131. The cubic root of 1400090385 is about 1118.7130160157.

The spelling of 1400090385 in words is "one billion, four hundred million, ninety thousand, three hundred eighty-five".