1061065740 has 96 divisors (see below), whose sum is σ = 3401556480. Its totient is φ = 242090496.

The previous prime is 1061065699. The next prime is 1061065751. The reversal of 1061065740 is 475601601.

It is a super-2 number, since 2×1061065740² = 2251721009203495200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1061065698 and 1061065707.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268096 + ... + 272024.

It is an arithmetic number, because the mean of its divisors is an integer number (35432880).

Almost surely, 2^1061065740 is an apocalyptic number.

1061065740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061065740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700778240).

1061065740 is an abundant number, since it is smaller than the sum of its proper divisors (2340490740).

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

1061065740 is a wasteful number, since it uses less digits than its factorization.

1061065740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591 (or 4589 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1061065740 is about 32574.0040523114. The cubic root of 1061065740 is about 1019.9544193396.

The spelling of 1061065740 in words is "one billion, sixty-one million, sixty-five thousand, seven hundred forty".