30878232 has 192 divisors, whose sum is σ = 102144000. Its totient is φ = 7761600.

The previous prime is 30878227. The next prime is 30878269. The reversal of 30878232 is 23287803.

It is a happy number.

It is a super-2 number, since 2×30878232² = 1906930422891648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 30878193 and 30878202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 996057 + ... + 996087.

It is an arithmetic number, because the mean of its divisors is an integer number (532000).

Almost surely, 2^30878232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30878232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51072000).

30878232 is an abundant number, since it is smaller than the sum of its proper divisors (71265768).

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

30878232 is a wasteful number, since it uses less digits than its factorization.

30878232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 30878232 is about 5556.8185142220. The cubic root of 30878232 is about 313.7262140770.

It can be divided in two parts, 3087 and 8232, that multiplied together give a cube (25412184 = 294³).

The spelling of 30878232 in words is "thirty million, eight hundred seventy-eight thousand, two hundred thirty-two".