742002238440 has 192 divisors, whose sum is σ = 2434451984640. Its totient is φ = 195993146880.

The previous prime is 742002238433. The next prime is 742002238489. The reversal of 742002238440 is 44832200247.

742002238440 is a `hidden beast` number, since 7 + 4 + 200 + 2 + 2 + 3 + 8 + 440 = 666.

742002238440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×742002238440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 742002238395 and 742002238404.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16855899 + ... + 16899861.

It is an arithmetic number, because the mean of its divisors is an integer number (12679437420).

Almost surely, 2^742002238440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742002238440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1217225992320).

742002238440 is an abundant number, since it is smaller than the sum of its proper divisors (1692449746200).

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

742002238440 is a wasteful number, since it uses less digits than its factorization.

742002238440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44424 (or 44417 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

Adding to 742002238440 its reverse (44832200247), we get a palindrome (786834438687).

The spelling of 742002238440 in words is "seven hundred forty-two billion, two million, two hundred thirty-eight thousand, four hundred forty".