26415480 has 256 divisors, whose sum is σ = 101606400. Its totient is φ = 5345280.

The previous prime is 26415469. The next prime is 26415509. The reversal of 26415480 is 8451462.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 447691 + ... + 447749.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

Almost surely, 2^26415480 is an apocalyptic number.

26415480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26415480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50803200).

26415480 is an abundant number, since it is smaller than the sum of its proper divisors (75190920).

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

26415480 is a wasteful number, since it uses less digits than its factorization.

26415480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 26415480 is about 5139.5992061638. The cubic root of 26415480 is about 297.8192979818.

The spelling of 26415480 in words is "twenty-six million, four hundred fifteen thousand, four hundred eighty".