26421958 has 24 divisors (see below), whose sum is σ = 42179040. Its totient is φ = 12398400.

The previous prime is 26421953. The next prime is 26421973. The reversal of 26421958 is 85912462.

Its product of digits (34560) is a multiple of the sum of its prime factors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26421953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97363 + ... + 97633.

It is an arithmetic number, because the mean of its divisors is an integer number (1757460).

Almost surely, 2^26421958 is an apocalyptic number.

26421958 is a deficient number, since it is larger than the sum of its proper divisors (15757082).

26421958 is a wasteful number, since it uses less digits than its factorization.

26421958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 343 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 26421958 is about 5140.2293723140. The cubic root of 26421958 is about 297.8436412296.

It can be divided in two parts, 264 and 21958, that added together give a palindrome (22222).

The spelling of 26421958 in words is "twenty-six million, four hundred twenty-one thousand, nine hundred fifty-eight".