1408987461 has 32 divisors (see below), whose sum is σ = 2168320000. Its totient is φ = 797195520.

The previous prime is 1408987453. The next prime is 1408987477. The reversal of 1408987461 is 1647898041.

It is not a de Polignac number, because 1408987461 - 2³ = 1408987453 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1408987461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1408987361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1006440 + ... + 1007838.

It is an arithmetic number, because the mean of its divisors is an integer number (67760000).

Almost surely, 2^1408987461 is an apocalyptic number.

It is an amenable number.

1408987461 is a deficient number, since it is larger than the sum of its proper divisors (759332539).

1408987461 is a wasteful number, since it uses less digits than its factorization.

1408987461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 1408987461 is about 37536.4817344407. The cubic root of 1408987461 is about 1121.0776885104.

The spelling of 1408987461 in words is "one billion, four hundred eight million, nine hundred eighty-seven thousand, four hundred sixty-one".