42739327440 has 120 divisors (see below), whose sum is σ = 143570239488. Its totient is φ = 11394190080.

The previous prime is 42739327427. The next prime is 42739327457. The reversal of 42739327440 is 4472393724.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×42739327440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5213745 + ... + 5221935.

Almost surely, 2^42739327440 is an apocalyptic number.

42739327440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42739327440 is an abundant number, since it is smaller than the sum of its proper divisors (100830912048).

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

42739327440 is a wasteful number, since it uses less digits than its factorization.

42739327440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15457 (or 15448 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 45.

The spelling of 42739327440 in words is "forty-two billion, seven hundred thirty-nine million, three hundred twenty-seven thousand, four hundred forty".