42778302 has 32 divisors (see below), whose sum is σ = 97977600. Its totient is φ = 12197568.

The previous prime is 42778289. The next prime is 42778303. The reversal of 42778302 is 20387724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42778303) 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, 33349 + ... + 34607.

It is an arithmetic number, because the mean of its divisors is an integer number (3061800).

Almost surely, 2^42778302 is an apocalyptic number.

42778302 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42778302 is an abundant number, since it is smaller than the sum of its proper divisors (55199298).

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

42778302 is a wasteful number, since it uses less digits than its factorization.

42778302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 42778302 is about 6540.5123652509. The cubic root of 42778302 is about 349.7366781304.

The spelling of 42778302 in words is "forty-two million, seven hundred seventy-eight thousand, three hundred two".