30421712 has 10 divisors (see below), whose sum is σ = 58942098. Its totient is φ = 15210848.

The previous prime is 30421693. The next prime is 30421723. The reversal of 30421712 is 21712403.

It can be written as a sum of positive squares in only one way, i.e., 28472896 + 1948816 = 5336^2 + 1396^2 .

It is a super-2 number, since 2×30421712² = 1850961122021888, which contains 22 as substring.

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, 950663 + ... + 950694.

Almost surely, 2^30421712 is an apocalyptic number.

It is an amenable number.

30421712 is a deficient number, since it is larger than the sum of its proper divisors (28520386).

30421712 is a wasteful number, since it uses less digits than its factorization.

30421712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901365 (or 1901359 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 30421712 is about 5515.5880919445. The cubic root of 30421712 is about 312.1724337210.

The spelling of 30421712 in words is "thirty million, four hundred twenty-one thousand, seven hundred twelve".