1457878912 has 128 divisors (see below), whose sum is σ = 3478118400. Its totient is φ = 595537920.

The previous prime is 1457878841. The next prime is 1457878927. The reversal of 1457878912 is 2198787541.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1457878912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2027289 + ... + 2028007.

It is an arithmetic number, because the mean of its divisors is an integer number (27172800).

Almost surely, 2^1457878912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1457878912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1739059200).

1457878912 is an abundant number, since it is smaller than the sum of its proper divisors (2020239488).

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

1457878912 is an equidigital number, since it uses as much as digits as its factorization.

1457878912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844 (or 832 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 52.

The square root of 1457878912 is about 38182.1805558562. The cubic root of 1457878912 is about 1133.8975528182.

The spelling of 1457878912 in words is "one billion, four hundred fifty-seven million, eight hundred seventy-eight thousand, nine hundred twelve".