1068473920 has 28 divisors (see below), whose sum is σ = 2544304284. Its totient is φ = 427389440.

The previous prime is 1068473881. The next prime is 1068473921. The reversal of 1068473920 is 293748601.

It can be written as a sum of positive squares in 2 ways, for example, as 621405184 + 447068736 = 24928^2 + 21144^2 .

It is a super-2 number, since 2×1068473920² = 2283273035440332800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1068473921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1669171 + ... + 1669810.

Almost surely, 2^1068473920 is an apocalyptic number.

1068473920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1068473920 is an abundant number, since it is smaller than the sum of its proper divisors (1475830364).

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

1068473920 is an equidigital number, since it uses as much as digits as its factorization.

1068473920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338998 (or 3338988 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1068473920 is about 32687.5193307782. The cubic root of 1068473920 is about 1022.3226322987.

The spelling of 1068473920 in words is "one billion, sixty-eight million, four hundred seventy-three thousand, nine hundred twenty".