726481278 has 32 divisors (see below), whose sum is σ = 1641772800. Its totient is φ = 238054968.

The previous prime is 726481277. The next prime is 726481307. The reversal of 726481278 is 872184627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726481277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110826 + ... + 117197.

It is an arithmetic number, because the mean of its divisors is an integer number (51305400).

Almost surely, 2^726481278 is an apocalyptic number.

726481278 is an abundant number, since it is smaller than the sum of its proper divisors (915291522).

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

726481278 is a wasteful number, since it uses less digits than its factorization.

726481278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228093 (or 228087 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 726481278 is about 26953.3166419274. The cubic root of 726481278 is about 898.9622928642.

The spelling of 726481278 in words is "seven hundred twenty-six million, four hundred eighty-one thousand, two hundred seventy-eight".