1040766540 has 96 divisors (see below), whose sum is σ = 3219471360. Its totient is φ = 249100800.

The previous prime is 1040766527. The next prime is 1040766577. The reversal of 1040766540 is 456670401.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 42160 + ... + 62120.

It is an arithmetic number, because the mean of its divisors is an integer number (33536160).

Almost surely, 2^1040766540 is an apocalyptic number.

1040766540 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 1040766540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609735680).

1040766540 is an abundant number, since it is smaller than the sum of its proper divisors (2178704820).

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

1040766540 is a wasteful number, since it uses less digits than its factorization.

1040766540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20063 (or 20061 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1040766540 is about 32260.9135022553. The cubic root of 1040766540 is about 1013.4082616667.

The spelling of 1040766540 in words is "one billion, forty million, seven hundred sixty-six thousand, five hundred forty".