30939454 has 32 divisors (see below), whose sum is σ = 57576960. Its totient is φ = 12141792.

The previous prime is 30939451. The next prime is 30939463. The reversal of 30939454 is 45493903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30939451) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24687 + ... + 25909.

It is an arithmetic number, because the mean of its divisors is an integer number (1799280).

Almost surely, 2^30939454 is an apocalyptic number.

30939454 is a deficient number, since it is larger than the sum of its proper divisors (26637506).

30939454 is a wasteful number, since it uses less digits than its factorization.

30939454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 30939454 is about 5562.3245140858. The cubic root of 30939454 is about 313.9334179353.

The spelling of 30939454 in words is "thirty million, nine hundred thirty-nine thousand, four hundred fifty-four".