1475994144 has 48 divisors (see below), whose sum is σ = 3894004800. Its totient is φ = 489519360.

The previous prime is 1475994139. The next prime is 1475994151. The reversal of 1475994144 is 4414995741.

It is a happy number.

1475994144 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a junction number, because it is equal to n+sod(n) for n = 1475994093 and 1475994102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19527 + ... + 57734.

It is an arithmetic number, because the mean of its divisors is an integer number (81125100).

Almost surely, 2^1475994144 is an apocalyptic number.

It is an amenable number.

1475994144 is an abundant number, since it is smaller than the sum of its proper divisors (2418010656).

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

1475994144 is a wasteful number, since it uses less digits than its factorization.

1475994144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77473 (or 77465 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 1475994144 is about 38418.6692117257. The cubic root of 1475994144 is about 1138.5747408514.

The spelling of 1475994144 in words is "one billion, four hundred seventy-five million, nine hundred ninety-four thousand, one hundred forty-four".