30240761 has 8 divisors (see below), whose sum is σ = 32269920. Its totient is φ = 28255392.

The previous prime is 30240757. The next prime is 30240767. The reversal of 30240761 is 16704203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30240761 - 2² = 30240757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30240767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9515 + ... + 12288.

It is an arithmetic number, because the mean of its divisors is an integer number (4033740).

Almost surely, 2^30240761 is an apocalyptic number.

It is an amenable number.

30240761 is a deficient number, since it is larger than the sum of its proper divisors (2029159).

30240761 is a wasteful number, since it uses less digits than its factorization.

30240761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21895.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 30240761 is about 5499.1600267677. The cubic root of 30240761 is about 311.5522595071.

Adding to 30240761 its reverse (16704203), we get a palindrome (46944964).

The spelling of 30240761 in words is "thirty million, two hundred forty thousand, seven hundred sixty-one".