42478776 has 32 divisors (see below), whose sum is σ = 117997200. Its totient is φ = 14159520.

The previous prime is 42478771. The next prime is 42478831. The reversal of 42478776 is 67787424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42478771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98115 + ... + 98546.

Almost surely, 2^42478776 is an apocalyptic number.

It is an amenable number.

42478776 is an abundant number, since it is smaller than the sum of its proper divisors (75518424).

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

42478776 is a wasteful number, since it uses less digits than its factorization.

42478776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196676 (or 196666 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 42478776 is about 6517.5743954327. The cubic root of 42478776 is about 348.9185010695.

The spelling of 42478776 in words is "forty-two million, four hundred seventy-eight thousand, seven hundred seventy-six".