45403278 has 8 divisors (see below), whose sum is σ = 90806568. Its totient is φ = 15134424.

The previous prime is 45403271. The next prime is 45403279. The reversal of 45403278 is 87230454.

45403278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

45403278 is an admirable number.

It is a super-2 number, since 2×45403278² = 4122915306290568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45403271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3783601 + ... + 3783612.

It is an arithmetic number, because the mean of its divisors is an integer number (11350821).

Almost surely, 2^45403278 is an apocalyptic number.

45403278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45403278 is a wasteful number, since it uses less digits than its factorization.

45403278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7567218.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 45403278 is about 6738.1954557582. The cubic root of 45403278 is about 356.7487030945.

The spelling of 45403278 in words is "forty-five million, four hundred three thousand, two hundred seventy-eight".