1468540739 has 4 divisors (see below), whose sum is σ = 1493431320. Its totient is φ = 1443650160.

The previous prime is 1468540729. The next prime is 1468540753. The reversal of 1468540739 is 9370458641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9370458641 = 757 ⋅12378413.

It is a cyclic number.

It is not a de Polignac number, because 1468540739 - 2²⁰ = 1467492163 is a prime.

It is a super-2 number, since 2×1468540739² = 4313223804205332242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1468540693 and 1468540702.

It is not an unprimeable number, because it can be changed into a prime (1468540729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12445202 + ... + 12445319.

It is an arithmetic number, because the mean of its divisors is an integer number (373357830).

Almost surely, 2^1468540739 is an apocalyptic number.

1468540739 is a deficient number, since it is larger than the sum of its proper divisors (24890581).

1468540739 is an equidigital number, since it uses as much as digits as its factorization.

1468540739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24890580.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 1468540739 is about 38321.5440581405. The cubic root of 1468540739 is about 1136.6549989581.

The spelling of 1468540739 in words is "one billion, four hundred sixty-eight million, five hundred forty thousand, seven hundred thirty-nine".