30400336 has 20 divisors (see below), whose sum is σ = 60801664. Its totient is φ = 14709600.

The previous prime is 30400333. The next prime is 30400351. The reversal of 30400336 is 63300403.

It is a happy number.

30400336 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30400333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30150 + ... + 31141.

Almost surely, 2^30400336 is an apocalyptic number.

It is an amenable number.

30400336 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30400336 is a wasteful number, since it uses less digits than its factorization.

30400336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61330 (or 61324 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 30400336 is about 5513.6499707544. The cubic root of 30400336 is about 312.0992999726.

Adding to 30400336 its reverse (63300403), we get a palindrome (93700739).

The spelling of 30400336 in words is "thirty million, four hundred thousand, three hundred thirty-six".