1026667740 has 96 divisors (see below), whose sum is σ = 3478616064. Its totient is φ = 220861440.

The previous prime is 1026667669. The next prime is 1026667751. The reversal of 1026667740 is 477666201.

It is a super-4 number, since 4×1026667740⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64756 + ... + 79035.

It is an arithmetic number, because the mean of its divisors is an integer number (36235584).

Almost surely, 2^1026667740 is an apocalyptic number.

1026667740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026667740 is an abundant number, since it is smaller than the sum of its proper divisors (2451948324).

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

1026667740 is a wasteful number, since it uses less digits than its factorization.

1026667740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143827 (or 143825 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 1026667740 is about 32041.6563242289. The cubic root of 1026667740 is about 1008.8113782406.

The spelling of 1026667740 in words is "one billion, twenty-six million, six hundred sixty-seven thousand, seven hundred forty".