742240625 has 24 divisors (see below), whose sum is σ = 1060307136. Its totient is φ = 508950000.

The previous prime is 742240573. The next prime is 742240661. The reversal of 742240625 is 526042247.

742240625 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 742240625 - 2⁶ = 742240561 is a prime.

It is a super-2 number, since 2×742240625² = 1101842290800781250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 742240591 and 742240600.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4910 + ... + 38840.

It is an arithmetic number, because the mean of its divisors is an integer number (44179464).

Almost surely, 2^742240625 is an apocalyptic number.

It is an amenable number.

742240625 is a deficient number, since it is larger than the sum of its proper divisors (318066511).

742240625 is an frugal number, since it uses more digits than its factorization.

742240625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33963 (or 33943 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 742240625 is about 27244.0933965511. The cubic root of 742240625 is about 905.4161573112.

The spelling of 742240625 in words is "seven hundred forty-two million, two hundred forty thousand, six hundred twenty-five".