30427902 has 48 divisors (see below), whose sum is σ = 69245280. Its totient is φ = 9643200.

The previous prime is 30427889. The next prime is 30427907. The reversal of 30427902 is 20972403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30427907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36652 + ... + 37472.

It is an arithmetic number, because the mean of its divisors is an integer number (1442610).

Almost surely, 2^30427902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30427902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34622640).

30427902 is an abundant number, since it is smaller than the sum of its proper divisors (38817378).

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

30427902 is a wasteful number, since it uses less digits than its factorization.

30427902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30427902 is about 5516.1492003027. The cubic root of 30427902 is about 312.1936051826.

It can be divided in two parts, 30427 and 902, that added together give a square (31329 = 177²).

The spelling of 30427902 in words is "thirty million, four hundred twenty-seven thousand, nine hundred two".