26349930 has 24 divisors (see below), whose sum is σ = 68510052. Its totient is φ = 7026624.

The previous prime is 26349923. The next prime is 26349943. The reversal of 26349930 is 3994362.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25918281 + 431649 = 5091^2 + 657^2 .

It is a super-2 number, since 2×26349930² = 1388637622009800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146299 + ... + 146478.

Almost surely, 2^26349930 is an apocalyptic number.

26349930 is an abundant number, since it is smaller than the sum of its proper divisors (42160122).

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

26349930 is a wasteful number, since it uses less digits than its factorization.

26349930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292790 (or 292787 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 26349930 is about 5133.2182887541. The cubic root of 26349930 is about 297.5727477863.

The spelling of 26349930 in words is "twenty-six million, three hundred forty-nine thousand, nine hundred thirty".