30749454 has 24 divisors (see below), whose sum is σ = 68922360. Its totient is φ = 9896208.

The previous prime is 30749423. The next prime is 30749491. The reversal of 30749454 is 45494703.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 28932 + ... + 29975.

It is an arithmetic number, because the mean of its divisors is an integer number (2871765).

Almost surely, 2^30749454 is an apocalyptic number.

30749454 is an abundant number, since it is smaller than the sum of its proper divisors (38172906).

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

30749454 is a wasteful number, since it uses less digits than its factorization.

30749454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58944 (or 58941 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 30749454 is about 5545.2190218241. The cubic root of 30749454 is about 313.2894735148.

The spelling of 30749454 in words is "thirty million, seven hundred forty-nine thousand, four hundred fifty-four".