30406026 has 32 divisors (see below), whose sum is σ = 69671808. Its totient is φ = 8665920.

The previous prime is 30406021. The next prime is 30406027. The reversal of 30406026 is 62060403.

It is a super-3 number, since 3×30406026³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 30405993 and 30406011.

It is not an unprimeable number, because it can be changed into a prime (30406021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25156 + ... + 26336.

It is an arithmetic number, because the mean of its divisors is an integer number (2177244).

Almost surely, 2^30406026 is an apocalyptic number.

30406026 is an abundant number, since it is smaller than the sum of its proper divisors (39265782).

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

30406026 is a wasteful number, since it uses less digits than its factorization.

30406026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 30406026 is about 5514.1659387436. The cubic root of 30406026 is about 312.1187705275.

Adding to 30406026 its reverse (62060403), we get a palindrome (92466429).

The spelling of 30406026 in words is "thirty million, four hundred six thousand, twenty-six".