42778296 has 48 divisors (see below), whose sum is σ = 126392760. Its totient is φ = 12962880.

The previous prime is 42778289. The next prime is 42778303. The reversal of 42778296 is 69287724.

It is an interprime number because it is at equal distance from previous prime (42778289) and next prime (42778303).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26215 + ... + 27798.

Almost surely, 2^42778296 is an apocalyptic number.

It is an amenable number.

42778296 is an abundant number, since it is smaller than the sum of its proper divisors (83614464).

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

42778296 is a wasteful number, since it uses less digits than its factorization.

42778296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54036 (or 54029 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 42778296 is about 6540.5119065712. The cubic root of 42778296 is about 349.7366617793.

The spelling of 42778296 in words is "forty-two million, seven hundred seventy-eight thousand, two hundred ninety-six".