1405897485 has 16 divisors (see below), whose sum is σ = 2254029120. Its totient is φ = 748280960.

The previous prime is 1405897469. The next prime is 1405897553. The reversal of 1405897485 is 5847985041.

It is not a de Polignac number, because 1405897485 - 2⁴ = 1405897469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88080 + ... + 102809.

It is an arithmetic number, because the mean of its divisors is an integer number (140876820).

Almost surely, 2^1405897485 is an apocalyptic number.

1405897485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1405897485 is a deficient number, since it is larger than the sum of its proper divisors (848131635).

1405897485 is a wasteful number, since it uses less digits than its factorization.

1405897485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191388.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The square root of 1405897485 is about 37495.2995054047. The cubic root of 1405897485 is about 1120.2575632665.

The spelling of 1405897485 in words is "one billion, four hundred five million, eight hundred ninety-seven thousand, four hundred eighty-five".