742442777 has 16 divisors (see below), whose sum is σ = 797978112. Its totient is φ = 689420160.

The previous prime is 742442759. The next prime is 742442791. The reversal of 742442777 is 777244247.

It is not a de Polignac number, because 742442777 - 2⁸ = 742442521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (742442797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79298 + ... + 88164.

It is an arithmetic number, because the mean of its divisors is an integer number (49873632).

Almost surely, 2^742442777 is an apocalyptic number.

It is an amenable number.

742442777 is a deficient number, since it is larger than the sum of its proper divisors (55535335).

742442777 is a wasteful number, since it uses less digits than its factorization.

742442777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9008.

The product of its digits is 614656, while the sum is 44.

The square root of 742442777 is about 27247.8031591540. The cubic root of 742442777 is about 905.4983476715.

The spelling of 742442777 in words is "seven hundred forty-two million, four hundred forty-two thousand, seven hundred seventy-seven".