1406408648 has 12 divisors (see below), whose sum is σ = 2637215115. Its totient is φ = 703151288.

The previous prime is 1406408617. The next prime is 1406408699. The reversal of 1406408648 is 8468046041.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 703204324 + 703204324 = 26518^2 + 26518^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=26518.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 99443 + ... + 112701.

Almost surely, 2^1406408648 is an apocalyptic number.

It is an amenable number.

1406408648 is a deficient number, since it is larger than the sum of its proper divisors (1230806467).

1406408648 is an frugal number, since it uses more digits than its factorization.

1406408648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26524 (or 13261 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 1406408648 is about 37502.1152470097. The cubic root of 1406408648 is about 1120.3933163676.

The spelling of 1406408648 in words is "one billion, four hundred six million, four hundred eight thousand, six hundred forty-eight".