742742600 has 48 divisors (see below), whose sum is σ = 1736607600. Its totient is φ = 295423040.

The previous prime is 742742557. The next prime is 742742603. The reversal of 742742600 is 6247247.

It is not an unprimeable number, because it can be changed into a prime (742742603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25427 + ... + 46173.

It is an arithmetic number, because the mean of its divisors is an integer number (36179325).

Almost surely, 2^742742600 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742742600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868303800).

742742600 is an abundant number, since it is smaller than the sum of its proper divisors (993865000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

742742600 is a wasteful number, since it uses less digits than its factorization.

742742600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20942 (or 20933 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 742742600 is about 27253.3043868078. The cubic root of 742742600 is about 905.6202213486.

Adding to 742742600 its reverse (6247247), we get a palindrome (748989847).

The spelling of 742742600 in words is "seven hundred forty-two million, seven hundred forty-two thousand, six hundred".