742520027 has 4 divisors (see below), whose sum is σ = 742577160. Its totient is φ = 742462896.

The previous prime is 742520003. The next prime is 742520047. The reversal of 742520027 is 720025247.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 742520027 - 2¹⁸ = 742257883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742520047) 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, 1424 + ... + 38562.

It is an arithmetic number, because the mean of its divisors is an integer number (185644290).

Almost surely, 2^742520027 is an apocalyptic number.

742520027 is a deficient number, since it is larger than the sum of its proper divisors (57133).

742520027 is a wasteful number, since it uses less digits than its factorization.

742520027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57132.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 742520027 is about 27249.2206677549. The cubic root of 742520027 is about 905.5297518073.

The spelling of 742520027 in words is "seven hundred forty-two million, five hundred twenty thousand, twenty-seven".