30199974 has 48 divisors (see below), whose sum is σ = 70862400. Its totient is φ = 8554896.

The previous prime is 30199957. The next prime is 30199997. The reversal of 30199974 is 47999103.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40497 + ... + 41235.

It is an arithmetic number, because the mean of its divisors is an integer number (1476300).

Almost surely, 2^30199974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30199974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35431200).

30199974 is an abundant number, since it is smaller than the sum of its proper divisors (40662426).

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

30199974 is a wasteful number, since it uses less digits than its factorization.

30199974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 30199974 is about 5495.4503000209. The cubic root of 30199974 is about 311.4121285622.

The spelling of 30199974 in words is "thirty million, one hundred ninety-nine thousand, nine hundred seventy-four".