1573215456 has 48 divisors (see below), whose sum is σ = 4309248384. Its totient is φ = 501604224.

The previous prime is 1573215451. The next prime is 1573215467. The reversal of 1573215456 is 6545123751.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1573215451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354046 + ... + 358461.

It is an arithmetic number, because the mean of its divisors is an integer number (89776008).

Almost surely, 2^1573215456 is an apocalyptic number.

1573215456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1573215456 is an abundant number, since it is smaller than the sum of its proper divisors (2736032928).

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

1573215456 is a wasteful number, since it uses less digits than its factorization.

1573215456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712543 (or 712535 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 1573215456 is about 39663.7801526783. The cubic root of 1573215456 is about 1163.0437937752.

The spelling of 1573215456 in words is "one billion, five hundred seventy-three million, two hundred fifteen thousand, four hundred fifty-six".