1061305440 has 96 divisors (see below), whose sum is σ = 3600295776. Its totient is φ = 261242880.

The previous prime is 1061305397. The next prime is 1061305519. The reversal of 1061305440 is 445031601.

1061305440 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1061305440² = 2252738473947187200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1061305440.

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, 78801 + ... + 91280.

It is an arithmetic number, because the mean of its divisors is an integer number (37503081).

Almost surely, 2^1061305440 is an apocalyptic number.

1061305440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1061305440 is an abundant number, since it is smaller than the sum of its proper divisors (2538990336).

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

1061305440 is a wasteful number, since it uses less digits than its factorization.

1061305440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170112 (or 170104 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1061305440 is about 32577.6831588743. The cubic root of 1061305440 is about 1020.0312178066.

The spelling of 1061305440 in words is "one billion, sixty-one million, three hundred five thousand, four hundred forty".