1406630505 has 96 divisors (see below), whose sum is σ = 2692224000. Its totient is φ = 625097088.

The previous prime is 1406630483. The next prime is 1406630543. The reversal of 1406630505 is 5050366041.

It is not a de Polignac number, because 1406630505 - 2⁹ = 1406629993 is a prime.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 7068396 + ... + 7068594.

It is an arithmetic number, because the mean of its divisors is an integer number (28044000).

Almost surely, 2^1406630505 is an apocalyptic number.

1406630505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1406630505 is a deficient number, since it is larger than the sum of its proper divisors (1285593495).

1406630505 is a wasteful number, since it uses less digits than its factorization.

1406630505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1406630505 is about 37505.0730568546. The cubic root of 1406630505 is about 1120.4522262327.

Adding to 1406630505 its reverse (5050366041), we get a palindrome (6456996546).

The spelling of 1406630505 in words is "one billion, four hundred six million, six hundred thirty thousand, five hundred five".