30729822 has 16 divisors (see below), whose sum is σ = 62767872. Its totient is φ = 10025240.

The previous prime is 30729791. The next prime is 30729841. The reversal of 30729822 is 22892703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54204 + ... + 54767.

It is an arithmetic number, because the mean of its divisors is an integer number (3922992).

Almost surely, 2^30729822 is an apocalyptic number.

30729822 is an abundant number, since it is smaller than the sum of its proper divisors (32038050).

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

30729822 is a wasteful number, since it uses less digits than its factorization.

30729822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109023.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 30729822 is about 5543.4485656494. The cubic root of 30729822 is about 313.2227860615. Note that the first 3 decimals are identical.

The spelling of 30729822 in words is "thirty million, seven hundred twenty-nine thousand, eight hundred twenty-two".