1055120037438 has 16 divisors (see below), whose sum is σ = 2114385935760. Its totient is φ = 351015702336.

The previous prime is 1055120037437. The next prime is 1055120037463. The reversal of 1055120037438 is 8347300215501.

It is a happy number.

It is a super-2 number, since 2×1055120037438² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055120037396 and 1055120037405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055120037437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172740895 + ... + 172747002.

It is an arithmetic number, because the mean of its divisors is an integer number (132149120985).

Almost surely, 2^{1055120037438} is an apocalyptic number.

1055120037438 is an abundant number, since it is smaller than the sum of its proper divisors (1059265898322).

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

1055120037438 is a wasteful number, since it uses less digits than its factorization.

1055120037438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345488411.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 1055120037438 in words is "one trillion, fifty-five billion, one hundred twenty million, thirty-seven thousand, four hundred thirty-eight".