542245434220440 has 192 divisors, whose sum is σ = 1772928871702560. Its totient is φ = 143727875020800.

The previous prime is 542245434220423. The next prime is 542245434220481. The reversal of 542245434220440 is 44022434542245.

542245434220440 is a `hidden beast` number, since 5 + 4 + 2 + 2 + 4 + 5 + 434 + 2 + 204 + 4 + 0 = 666.

It is a super-2 number, since 2×542245434220440² (a number of 30 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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70899492 + ... + 78174348.

Almost surely, 2^{542245434220440} 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 542245434220440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (886464435851280).

542245434220440 is an abundant number, since it is smaller than the sum of its proper divisors (1230683437482120).

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

542245434220440 is a wasteful number, since it uses less digits than its factorization.

542245434220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7276122 (or 7276115 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 45.

Adding to 542245434220440 its reverse (44022434542245), we get a palindrome (586267868762685).

The spelling of 542245434220440 in words is "five hundred forty-two trillion, two hundred forty-five billion, four hundred thirty-four million, two hundred twenty thousand, four hundred forty".