147678816 has 24 divisors (see below), whose sum is σ = 387657144. Its totient is φ = 49226240.

The previous prime is 147678767. The next prime is 147678821. The reversal of 147678816 is 618876741.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769065 + ... + 769256.

It is an arithmetic number, because the mean of its divisors is an integer number (16152381).

Almost surely, 2^147678816 is an apocalyptic number.

147678816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

147678816 is an abundant number, since it is smaller than the sum of its proper divisors (239978328).

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

147678816 is a wasteful number, since it uses less digits than its factorization.

147678816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538334 (or 1538326 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 147678816 is about 12152.3173098796. The cubic root of 147678816 is about 528.5743291364.

The spelling of 147678816 in words is "one hundred forty-seven million, six hundred seventy-eight thousand, eight hundred sixteen".