40342247484 has 144 divisors (see below), whose sum is σ = 119183253504. Its totient is φ = 10395665280.

The previous prime is 40342247479. The next prime is 40342247501. The reversal of 40342247484 is 48474224304.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1275202 + ... + 1306454.

Almost surely, 2^40342247484 is an apocalyptic number.

40342247484 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40342247484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59591626752).

40342247484 is an abundant number, since it is smaller than the sum of its proper divisors (78841006020).

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

40342247484 is a wasteful number, since it uses less digits than its factorization.

40342247484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31416 (or 31403 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 42.

The spelling of 40342247484 in words is "forty billion, three hundred forty-two million, two hundred forty-seven thousand, four hundred eighty-four".