1406832440 has 32 divisors (see below), whose sum is σ = 3408864480. Its totient is φ = 519445632.

The previous prime is 1406832437. The next prime is 1406832457. The reversal of 1406832440 is 442386041.

It is a junction number, because it is equal to n+sod(n) for n = 1406832397 and 1406832406.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1352204 + ... + 1353243.

It is an arithmetic number, because the mean of its divisors is an integer number (106527015).

Almost surely, 2^1406832440 is an apocalyptic number.

1406832440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1406832440 is an abundant number, since it is smaller than the sum of its proper divisors (2002032040).

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

1406832440 is a wasteful number, since it uses less digits than its factorization.

1406832440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705471 (or 2705467 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 1406832440 is about 37507.7650627173. The cubic root of 1406832440 is about 1120.5058408086.

The spelling of 1406832440 in words is "one billion, four hundred six million, eight hundred thirty-two thousand, four hundred forty".