40078302 has 32 divisors (see below), whose sum is σ = 88439040. Its totient is φ = 12006720.

The previous prime is 40078267. The next prime is 40078309. The reversal of 40078302 is 20387004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40078309) 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, 2463 + ... + 9285.

It is an arithmetic number, because the mean of its divisors is an integer number (2763720).

Almost surely, 2^40078302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40078302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44219520).

40078302 is an abundant number, since it is smaller than the sum of its proper divisors (48360738).

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

40078302 is a wasteful number, since it uses less digits than its factorization.

40078302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 40078302 is about 6330.7426104684. The cubic root of 40078302 is about 342.2182014404.

The spelling of 40078302 in words is "forty million, seventy-eight thousand, three hundred two".