1648457472 has 72 divisors (see below), whose sum is σ = 4578102144. Its totient is φ = 525589504.

The previous prime is 1648457431. The next prime is 1648457483. The reversal of 1648457472 is 2747548461.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28998 + ... + 64325.

It is an arithmetic number, because the mean of its divisors is an integer number (63584752).

Almost surely, 2^1648457472 is an apocalyptic number.

1648457472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1648457472 is an abundant number, since it is smaller than the sum of its proper divisors (2929644672).

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

1648457472 is an equidigital number, since it uses as much as digits as its factorization.

1648457472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93365 (or 93351 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 48.

The square root of 1648457472 is about 40601.2003763436. The cubic root of 1648457472 is about 1181.2974028288.

The spelling of 1648457472 in words is "one billion, six hundred forty-eight million, four hundred fifty-seven thousand, four hundred seventy-two".