42780902 has 8 divisors (see below), whose sum is σ = 64206912. Its totient is φ = 21378600.

The previous prime is 42780869. The next prime is 42780919. The reversal of 42780902 is 20908724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374 + ... + 9257.

It is an arithmetic number, because the mean of its divisors is an integer number (8025864).

Almost surely, 2^42780902 is an apocalyptic number.

42780902 is a deficient number, since it is larger than the sum of its proper divisors (21426010).

42780902 is a wasteful number, since it uses less digits than its factorization.

42780902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11854.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 42780902 is about 6540.7111234177. The cubic root of 42780902 is about 349.7437634743.

The spelling of 42780902 in words is "forty-two million, seven hundred eighty thousand, nine hundred two".