30478136 has 24 divisors (see below), whose sum is σ = 61883280. Its totient is φ = 14066208.

The previous prime is 30478117. The next prime is 30478141. The reversal of 30478136 is 63187403.

It is a super-3 number, since 3×30478136³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9920 + ... + 12623.

It is an arithmetic number, because the mean of its divisors is an integer number (2578470).

Almost surely, 2^30478136 is an apocalyptic number.

It is an amenable number.

30478136 is an abundant number, since it is smaller than the sum of its proper divisors (31405144).

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

30478136 is a wasteful number, since it uses less digits than its factorization.

30478136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22575 (or 22558 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 30478136 is about 5520.7006801673. The cubic root of 30478136 is about 312.3653128383.

The spelling of 30478136 in words is "thirty million, four hundred seventy-eight thousand, one hundred thirty-six".