30729022 has 4 divisors (see below), whose sum is σ = 46093536. Its totient is φ = 15364510.

The previous prime is 30729019. The next prime is 30729043. The reversal of 30729022 is 22092703.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7682254 + ... + 7682257.

It is an arithmetic number, because the mean of its divisors is an integer number (11523384).

Almost surely, 2^30729022 is an apocalyptic number.

30729022 is a deficient number, since it is larger than the sum of its proper divisors (15364514).

30729022 is a wasteful number, since it uses less digits than its factorization.

30729022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15364513.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30729022 is about 5543.3764079305. The cubic root of 30729022 is about 313.2200679591.

The spelling of 30729022 in words is "thirty million, seven hundred twenty-nine thousand, twenty-two".