1026740720 has 40 divisors (see below), whose sum is σ = 2396096640. Its totient is φ = 409160960.

The previous prime is 1026740719. The next prime is 1026740731. The reversal of 1026740720 is 270476201.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1026740720² = 2108393012212236800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 45375.

It is an arithmetic number, because the mean of its divisors is an integer number (59902416).

Almost surely, 2^1026740720 is an apocalyptic number.

1026740720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026740720 is an abundant number, since it is smaller than the sum of its proper divisors (1369355920).

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

1026740720 is a wasteful number, since it uses less digits than its factorization.

1026740720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47993 (or 47987 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 1026740720 is about 32042.7951340079. The cubic root of 1026740720 is about 1008.8352812383.

The spelling of 1026740720 in words is "one billion, twenty-six million, seven hundred forty thousand, seven hundred twenty".