4278637240 has 32 divisors (see below), whose sum is σ = 9630517680. Its totient is φ = 1710817792.

The previous prime is 4278637229. The next prime is 4278637241. The reversal of 4278637240 is 427368724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278637241) 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, 97419 + ... + 134341.

Almost surely, 2^4278637240 is an apocalyptic number.

4278637240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4278637240 is an abundant number, since it is smaller than the sum of its proper divisors (5351880440).

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

4278637240 is a wasteful number, since it uses less digits than its factorization.

4278637240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39831 (or 39827 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 43.

The square root of 4278637240 is about 65411.2929087937. The cubic root of 4278637240 is about 1623.4359375977.

The spelling of 4278637240 in words is "four billion, two hundred seventy-eight million, six hundred thirty-seven thousand, two hundred forty".