30312404 has 6 divisors (see below), whose sum is σ = 53046714. Its totient is φ = 15156200.

The previous prime is 30312383. The next prime is 30312409. The reversal of 30312404 is 40421303.

It can be written as a sum of positive squares in only one way, i.e., 17724100 + 12588304 = 4210^2 + 3548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3789047 + ... + 3789054.

It is an arithmetic number, because the mean of its divisors is an integer number (8841119).

Almost surely, 2^30312404 is an apocalyptic number.

It is an amenable number.

30312404 is a deficient number, since it is larger than the sum of its proper divisors (22734310).

30312404 is a wasteful number, since it uses less digits than its factorization.

30312404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7578105 (or 7578103 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30312404 is about 5505.6701681085. The cubic root of 30312404 is about 311.7980969632.

Adding to 30312404 its reverse (40421303), we get a palindrome (70733707).

The spelling of 30312404 in words is "thirty million, three hundred twelve thousand, four hundred four".