26431480 has 16 divisors (see below), whose sum is σ = 59470920. Its totient is φ = 10572576.

The previous prime is 26431453. The next prime is 26431507. The reversal of 26431480 is 8413462.

It is an interprime number because it is at equal distance from previous prime (26431453) and next prime (26431507).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330354 + ... + 330433.

Almost surely, 2^26431480 is an apocalyptic number.

26431480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26431480 is an abundant number, since it is smaller than the sum of its proper divisors (33039440).

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

26431480 is a wasteful number, since it uses less digits than its factorization.

26431480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660798 (or 660794 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 26431480 is about 5141.1555121393. The cubic root of 26431480 is about 297.8794161020.

The spelling of 26431480 in words is "twenty-six million, four hundred thirty-one thousand, four hundred eighty".