30973400 has 48 divisors (see below), whose sum is σ = 72417240. Its totient is φ = 12320000.

The previous prime is 30973399. The next prime is 30973417. The reversal of 30973400 is 437903.

30973400 = T₆₉ + T₇₀ + ... + T₅₇₀.

It is a self number, because there is not a number n which added to its sum of digits gives 30973400.

It is a congruent number.

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, 49892 + ... + 50508.

Almost surely, 2^30973400 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 30973400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36208620).

30973400 is an abundant number, since it is smaller than the sum of its proper divisors (41443840).

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

30973400 is a wasteful number, since it uses less digits than its factorization.

30973400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 30973400 is about 5565.3750996676. The cubic root of 30973400 is about 314.0481892855.

The spelling of 30973400 in words is "thirty million, nine hundred seventy-three thousand, four hundred".