42015000440 has 64 divisors (see below), whose sum is σ = 108469186560. Its totient is φ = 14347728000.

The previous prime is 42015000407. The next prime is 42015000463. The reversal of 42015000440 is 4400051024.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228632 + ... + 369191.

It is an arithmetic number, because the mean of its divisors is an integer number (1694831040).

Almost surely, 2^42015000440 is an apocalyptic number.

42015000440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42015000440 is an abundant number, since it is smaller than the sum of its proper divisors (66454186120).

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

42015000440 is a wasteful number, since it uses less digits than its factorization.

42015000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598092 (or 598088 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 42015000440 its reverse (4400051024), we get a palindrome (46415051464).

The spelling of 42015000440 in words is "forty-two billion, fifteen million, four hundred forty", and thus it is an aban number.