40478298 has 32 divisors (see below), whose sum is σ = 96546816. Its totient is φ = 11062128.

The previous prime is 40478293. The next prime is 40478299. The reversal of 40478298 is 89287404.

40478298 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (40478293) 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 15 ways as a sum of consecutive naturals, for example, 19986 + ... + 21917.

It is an arithmetic number, because the mean of its divisors is an integer number (3017088).

Almost surely, 2^40478298 is an apocalyptic number.

40478298 is an abundant number, since it is smaller than the sum of its proper divisors (56068518).

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

40478298 is a wasteful number, since it uses less digits than its factorization.

40478298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41938.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 40478298 is about 6362.2557320498. The cubic root of 40478298 is about 343.3529220817.

The spelling of 40478298 in words is "forty million, four hundred seventy-eight thousand, two hundred ninety-eight".