30679400 has 48 divisors (see below), whose sum is σ = 71766240. Its totient is φ = 12196800.

The previous prime is 30679381. The next prime is 30679409. The reversal of 30679400 is 497603.

It is not an unprimeable number, because it can be changed into a prime (30679409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41837 + ... + 42563.

It is an arithmetic number, because the mean of its divisors is an integer number (1495130).

Almost surely, 2^30679400 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 30679400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35883120).

30679400 is an abundant number, since it is smaller than the sum of its proper divisors (41086840).

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

30679400 is a wasteful number, since it uses less digits than its factorization.

30679400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 30679400 is about 5538.8988075248. The cubic root of 30679400 is about 313.0513785692.

The spelling of 30679400 in words is "thirty million, six hundred seventy-nine thousand, four hundred".