30402000 has 160 divisors (see below), whose sum is σ = 109100160. Its totient is φ = 8092800.

The previous prime is 30401981. The next prime is 30402013. The reversal of 30402000 is 20403.

30402000 = 146³ + 147³ + ... + 154³.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53719 + ... + 54281.

It is an arithmetic number, because the mean of its divisors is an integer number (681876).

Almost surely, 2^30402000 is an apocalyptic number.

30402000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30402000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54550080).

30402000 is an abundant number, since it is smaller than the sum of its proper divisors (78698160).

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

30402000 is a wasteful number, since it uses less digits than its factorization.

30402000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 30402000 is about 5513.8008669157. The cubic root of 30402000 is about 312.1049942492.

Adding to 30402000 its reverse (20403), we get a palindrome (30422403).

The spelling of 30402000 in words is "thirty million, four hundred two thousand".