1408906978 has 8 divisors (see below), whose sum is σ = 2113523280. Its totient is φ = 704399220.

The previous prime is 1408906973. The next prime is 1408906991. The reversal of 1408906978 is 8796098041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1408906973) 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, 26593 + ... + 59371.

It is an arithmetic number, because the mean of its divisors is an integer number (264190410).

Almost surely, 2^1408906978 is an apocalyptic number.

1408906978 is a deficient number, since it is larger than the sum of its proper divisors (704616302).

1408906978 is a wasteful number, since it uses less digits than its factorization.

1408906978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54272.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 1408906978 is about 37535.4096554174. The cubic root of 1408906978 is about 1121.0563423508.

The spelling of 1408906978 in words is "one billion, four hundred eight million, nine hundred six thousand, nine hundred seventy-eight".