30427400 has 48 divisors (see below), whose sum is σ = 71245440. Its totient is φ = 12084800.

The previous prime is 30427387. The next prime is 30427427. The reversal of 30427400 is 472403.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32945 + ... + 33855.

It is an arithmetic number, because the mean of its divisors is an integer number (1484280).

Almost surely, 2^30427400 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 30427400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35622720).

30427400 is an abundant number, since it is smaller than the sum of its proper divisors (40818040).

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

30427400 is a wasteful number, since it uses less digits than its factorization.

30427400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 30427400 is about 5516.1036973574. The cubic root of 30427400 is about 312.1918883148.

Adding to 30427400 its reverse (472403), we get a palindrome (30899803).

The spelling of 30427400 in words is "thirty million, four hundred twenty-seven thousand, four hundred".