1406434655 has 4 divisors (see below), whose sum is σ = 1687721592. Its totient is φ = 1125147720.

The previous prime is 1406434651. The next prime is 1406434657. The reversal of 1406434655 is 5564346041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1406434655 - 2² = 1406434651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406434651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140643461 + ... + 140643470.

It is an arithmetic number, because the mean of its divisors is an integer number (421930398).

Almost surely, 2^1406434655 is an apocalyptic number.

1406434655 is a deficient number, since it is larger than the sum of its proper divisors (281286937).

1406434655 is an equidigital number, since it uses as much as digits as its factorization.

1406434655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281286936.

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 1406434655 is about 37502.4619858483. The cubic root of 1406434655 is about 1120.4002223475.

The spelling of 1406434655 in words is "one billion, four hundred six million, four hundred thirty-four thousand, six hundred fifty-five".