1400543089 has 16 divisors (see below), whose sum is σ = 1554546816. Its totient is φ = 1251107200.

The previous prime is 1400543069. The next prime is 1400543093. The reversal of 1400543089 is 9803450041.

It is a cyclic number.

It is not a de Polignac number, because 1400543089 - 2⁷ = 1400542961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400543069) 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, 244749 + ... + 250405.

It is an arithmetic number, because the mean of its divisors is an integer number (97159176).

Almost surely, 2^1400543089 is an apocalyptic number.

It is an amenable number.

1400543089 is a deficient number, since it is larger than the sum of its proper divisors (154003727).

1400543089 is a wasteful number, since it uses less digits than its factorization.

1400543089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1400543089 is about 37423.8304960890. The cubic root of 1400543089 is about 1118.8335775851.

The spelling of 1400543089 in words is "one billion, four hundred million, five hundred forty-three thousand, eighty-nine".