742706369 has 2 divisors, whose sum is σ = 742706370. Its totient is φ = 742706368.

The previous prime is 742706359. The next prime is 742706381. The reversal of 742706369 is 963607247.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 567011344 + 175695025 = 23812^2 + 13255^2 .

It is a cyclic number.

It is not a de Polignac number, because 742706369 - 2⁸ = 742706113 is a prime.

It is a super-2 number, since 2×742706369² = 1103225501106328322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (742706359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371353184 + 371353185.

It is an arithmetic number, because the mean of its divisors is an integer number (371353185).

Almost surely, 2^742706369 is an apocalyptic number.

It is an amenable number.

742706369 is a deficient number, since it is larger than the sum of its proper divisors (1).

742706369 is an equidigital number, since it uses as much as digits as its factorization.

742706369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 742706369 is about 27252.6396703145. The cubic root of 742706369 is about 905.6054957179.

The spelling of 742706369 in words is "seven hundred forty-two million, seven hundred six thousand, three hundred sixty-nine".