742770043 has 2 divisors, whose sum is σ = 742770044. Its totient is φ = 742770042.

The previous prime is 742770029. The next prime is 742770047. The reversal of 742770043 is 340077247.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742770043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 742769990 and 742770008.

It is not a weakly prime, because it can be changed into another prime (742770047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371385021 + 371385022.

It is an arithmetic number, because the mean of its divisors is an integer number (371385022).

Almost surely, 2^742770043 is an apocalyptic number.

742770043 is a deficient number, since it is larger than the sum of its proper divisors (1).

742770043 is an equidigital number, since it uses as much as digits as its factorization.

742770043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 742770043 is about 27253.8078623887. The cubic root of 742770043 is about 905.6313748894.

The spelling of 742770043 in words is "seven hundred forty-two million, seven hundred seventy thousand, forty-three".