1403472861 has 24 divisors (see below), whose sum is σ = 2321017920. Its totient is φ = 800539776.

The previous prime is 1403472817. The next prime is 1403472881. The reversal of 1403472861 is 1682743041.

It is not a de Polignac number, because 1403472861 - 2⁶ = 1403472797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403472881) 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 23 ways as a sum of consecutive naturals, for example, 15685 + ... + 55253.

It is an arithmetic number, because the mean of its divisors is an integer number (96709080).

Almost surely, 2^1403472861 is an apocalyptic number.

It is an amenable number.

1403472861 is a deficient number, since it is larger than the sum of its proper divisors (917545059).

1403472861 is a wasteful number, since it uses less digits than its factorization.

1403472861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40145 (or 40142 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1403472861 is about 37462.9531804421. The cubic root of 1403472861 is about 1119.6131904574.

The spelling of 1403472861 in words is "one billion, four hundred three million, four hundred seventy-two thousand, eight hundred sixty-one".