42402768 has 20 divisors (see below), whose sum is σ = 109540608. Its totient is φ = 14134240.

The previous prime is 42402719. The next prime is 42402797. The reversal of 42402768 is 86720424.

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, 441648 + ... + 441743.

Almost surely, 2^42402768 is an apocalyptic number.

42402768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42402768 is an abundant number, since it is smaller than the sum of its proper divisors (67137840).

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

42402768 is a wasteful number, since it uses less digits than its factorization.

42402768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883402 (or 883396 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 42402768 is about 6511.7407810815. The cubic root of 42402768 is about 348.7102682091.

The spelling of 42402768 in words is "forty-two million, four hundred two thousand, seven hundred sixty-eight".