42102331440 has 80 divisors (see below), whose sum is σ = 140557024608. Its totient is φ = 10363650048.

The previous prime is 42102331421. The next prime is 42102331451. The reversal of 42102331440 is 4413320124.

42102331440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×42102331440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 42102331440.

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, 6744049 + ... + 6750288.

Almost surely, 2^42102331440 is an apocalyptic number.

42102331440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42102331440 is an abundant number, since it is smaller than the sum of its proper divisors (98454693168).

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

42102331440 is a wasteful number, since it uses less digits than its factorization.

42102331440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13494366 (or 13494360 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42102331440 its reverse (4413320124), we get a palindrome (46515651564).

The spelling of 42102331440 in words is "forty-two billion, one hundred two million, three hundred thirty-one thousand, four hundred forty".