2732420731 has 2 divisors, whose sum is σ = 2732420732. Its totient is φ = 2732420730.

The previous prime is 2732420711. The next prime is 2732420741. The reversal of 2732420731 is 1370242372.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2732420731 - 2⁵ = 2732420699 is a prime.

It is a super-2 number, since 2×2732420731² = 14932246102397148722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2732420693 and 2732420702.

It is not a weakly prime, because it can be changed into another prime (2732420701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1366210365 + 1366210366.

It is an arithmetic number, because the mean of its divisors is an integer number (1366210366).

Almost surely, 2^2732420731 is an apocalyptic number.

2732420731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2732420731 is an equidigital number, since it uses as much as digits as its factorization.

2732420731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 2732420731 is about 52272.5619326239. The cubic root of 2732420731 is about 1398.0279600535.

The spelling of 2732420731 in words is "two billion, seven hundred thirty-two million, four hundred twenty thousand, seven hundred thirty-one".