742742632 has 8 divisors (see below), whose sum is σ = 1392642450. Its totient is φ = 371371312.

The previous prime is 742742617. The next prime is 742742633. The reversal of 742742632 is 236247247.

It can be written as a sum of positive squares in only one way, i.e., 378925156 + 363817476 = 19466^2 + 19074^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 742742591 and 742742600.

It is not an unprimeable number, because it can be changed into a prime (742742633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46421407 + ... + 46421422.

Almost surely, 2^742742632 is an apocalyptic number.

It is an amenable number.

742742632 is a deficient number, since it is larger than the sum of its proper divisors (649899818).

742742632 is a wasteful number, since it uses less digits than its factorization.

742742632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92842835 (or 92842831 counting only the distinct ones).

The product of its digits is 112896, while the sum is 37.

The square root of 742742632 is about 27253.3049738926. The cubic root of 742742632 is about 905.6202343544.

Adding to 742742632 its reverse (236247247), we get a palindrome (978989879).

The spelling of 742742632 in words is "seven hundred forty-two million, seven hundred forty-two thousand, six hundred thirty-two".