30742950 has 192 divisors, whose sum is σ = 97136640. Its totient is φ = 6272640.

The previous prime is 30742909. The next prime is 30742961. The reversal of 30742950 is 5924703.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 458817 + ... + 458883.

It is an arithmetic number, because the mean of its divisors is an integer number (505920).

Almost surely, 2^30742950 is an apocalyptic number.

30742950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30742950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48568320).

30742950 is an abundant number, since it is smaller than the sum of its proper divisors (66393690).

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

30742950 is a wasteful number, since it uses less digits than its factorization.

30742950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 30742950 is about 5544.6325396729. The cubic root of 30742950 is about 313.2673833836.

The spelling of 30742950 in words is "thirty million, seven hundred forty-two thousand, nine hundred fifty".