1406685536 has 72 divisors (see below), whose sum is σ = 3022147296. Its totient is φ = 643921920.

The previous prime is 1406685529. The next prime is 1406685551. The reversal of 1406685536 is 6355866041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340121 + ... + 344231.

It is an arithmetic number, because the mean of its divisors is an integer number (41974268).

Almost surely, 2^1406685536 is an apocalyptic number.

1406685536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1406685536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1511073648).

1406685536 is an abundant number, since it is smaller than the sum of its proper divisors (1615461760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1406685536 is a wasteful number, since it uses less digits than its factorization.

1406685536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 1406685536 is about 37505.8066970969. The cubic root of 1406685536 is about 1120.4668376989.

The spelling of 1406685536 in words is "one billion, four hundred six million, six hundred eighty-five thousand, five hundred thirty-six".