26420730 has 32 divisors (see below), whose sum is σ = 72468864. Its totient is φ = 6038976.

The previous prime is 26420729. The next prime is 26420743. The reversal of 26420730 is 3702462.

It is a self number, because there is not a number n which added to its sum of digits gives 26420730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62697 + ... + 63116.

It is an arithmetic number, because the mean of its divisors is an integer number (2264652).

Almost surely, 2^26420730 is an apocalyptic number.

26420730 is an abundant number, since it is smaller than the sum of its proper divisors (46048134).

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

26420730 is a wasteful number, since it uses less digits than its factorization.

26420730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125830.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 26420730 is about 5140.1099210036. The cubic root of 26420730 is about 297.8390269152.

The spelling of 26420730 in words is "twenty-six million, four hundred twenty thousand, seven hundred thirty".