30402124 has 24 divisors (see below), whose sum is σ = 54105408. Its totient is φ = 14946000.

The previous prime is 30402107. The next prime is 30402131. The reversal of 30402124 is 42120403.

It is a super-2 number, since 2×30402124² = 1848578287422752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30402098 and 30402107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107287 + ... + 107569.

It is an arithmetic number, because the mean of its divisors is an integer number (2254392).

Almost surely, 2^30402124 is an apocalyptic number.

It is an amenable number.

30402124 is a deficient number, since it is larger than the sum of its proper divisors (23703284).

30402124 is a wasteful number, since it uses less digits than its factorization.

30402124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30402124 is about 5513.8121114162. The cubic root of 30402124 is about 312.1054185740.

Adding to 30402124 its reverse (42120403), we get a palindrome (72522527).

The spelling of 30402124 in words is "thirty million, four hundred two thousand, one hundred twenty-four".