1406663424 has 108 divisors (see below), whose sum is σ = 4154957352. Its totient is φ = 457420800.

The previous prime is 1406663411. The next prime is 1406663441. The reversal of 1406663424 is 4243666041.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 87019 + ... + 101909.

Almost surely, 2^1406663424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1406663424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2077478676).

1406663424 is an abundant number, since it is smaller than the sum of its proper divisors (2748293928).

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

1406663424 is a wasteful number, since it uses less digits than its factorization.

1406663424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14954 (or 14937 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 1406663424 is about 37505.5119149173. The cubic root of 1406663424 is about 1120.4609667131.

The spelling of 1406663424 in words is "one billion, four hundred six million, six hundred sixty-three thousand, four hundred twenty-four".