1423813878 has 12 divisors (see below), whose sum is σ = 3084930108. Its totient is φ = 474604620.

The previous prime is 1423813861. The next prime is 1423813913. The reversal of 1423813878 is 8783183241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39550368 + ... + 39550403.

It is an arithmetic number, because the mean of its divisors is an integer number (257077509).

Almost surely, 2^1423813878 is an apocalyptic number.

1423813878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1423813878 is an abundant number, since it is smaller than the sum of its proper divisors (1661116230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423813878 is a wasteful number, since it uses less digits than its factorization.

1423813878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79100779 (or 79100776 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 1423813878 is about 37733.4583360709. The cubic root of 1423813878 is about 1124.9962476912.

The spelling of 1423813878 in words is "one billion, four hundred twenty-three million, eight hundred thirteen thousand, eight hundred seventy-eight".