30540790 has 32 divisors (see below), whose sum is σ = 66136320. Its totient is φ = 9919584.

The previous prime is 30540749. The next prime is 30540817. The reversal of 30540790 is 9704503.

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 15 ways as a sum of consecutive naturals, for example, 10152 + ... + 12811.

It is an arithmetic number, because the mean of its divisors is an integer number (2066760).

Almost surely, 2^30540790 is an apocalyptic number.

30540790 is an abundant number, since it is smaller than the sum of its proper divisors (35595530).

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

30540790 is a wasteful number, since it uses less digits than its factorization.

30540790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22996.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 30540790 is about 5526.3722277820. The cubic root of 30540790 is about 312.5792097876.

The spelling of 30540790 in words is "thirty million, five hundred forty thousand, seven hundred ninety".