30205400 has 24 divisors (see below), whose sum is σ = 70228020. Its totient is φ = 12082080.

The previous prime is 30205381. The next prime is 30205403. The reversal of 30205400 is 450203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30205403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75314 + ... + 75713.

Almost surely, 2^30205400 is an apocalyptic number.

It is an amenable number.

30205400 is an abundant number, since it is smaller than the sum of its proper divisors (40022620).

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

30205400 is a wasteful number, since it uses less digits than its factorization.

30205400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151043 (or 151034 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 30205400 is about 5495.9439589574. The cubic root of 30205400 is about 311.4307778169.

Adding to 30205400 its reverse (450203), we get a palindrome (30655603).

The spelling of 30205400 in words is "thirty million, two hundred five thousand, four hundred".