1457390784 has 56 divisors (see below), whose sum is σ = 3868570368. Its totient is φ = 484215040.

The previous prime is 1457390777. The next prime is 1457390813. The reversal of 1457390784 is 4870937541.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47509 + ... + 71915.

Almost surely, 2^1457390784 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 1457390784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1934285184).

1457390784 is an abundant number, since it is smaller than the sum of its proper divisors (2411179584).

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

1457390784 is a wasteful number, since it uses less digits than its factorization.

1457390784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24733 (or 24723 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 1457390784 is about 38175.7879290002. The cubic root of 1457390784 is about 1133.7709879107.

The spelling of 1457390784 in words is "one billion, four hundred fifty-seven million, three hundred ninety thousand, seven hundred eighty-four".