20346030 has 48 divisors (see below), whose sum is σ = 55205280. Its totient is φ = 5189184.

The previous prime is 20346019. The next prime is 20346043. The reversal of 20346030 is 3064302.

20346030 is a `hidden beast` number, since 203 + 460 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20345994 and 20346012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2845 + ... + 6984.

It is an arithmetic number, because the mean of its divisors is an integer number (1150110).

Almost surely, 2^20346030 is an apocalyptic number.

20346030 is an abundant number, since it is smaller than the sum of its proper divisors (34859250).

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

20346030 is a wasteful number, since it uses less digits than its factorization.

20346030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9865 (or 9862 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20346030 is about 4510.6573800279. The cubic root of 20346030 is about 272.9982691192.

The spelling of 20346030 in words is "twenty million, three hundred forty-six thousand, thirty".