1059172638 has 8 divisors (see below), whose sum is σ = 2118345288. Its totient is φ = 353057544.

The previous prime is 1059172637. The next prime is 1059172657. The reversal of 1059172638 is 8362719501.

It is a sphenic number, since it is the product of 3 distinct primes.

1059172638 is an admirable number.

It is a super-2 number, since 2×1059172638² = 2243693354175758088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1059172638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1059172637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88264381 + ... + 88264392.

It is an arithmetic number, because the mean of its divisors is an integer number (264793161).

Almost surely, 2^1059172638 is an apocalyptic number.

1059172638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1059172638 is a wasteful number, since it uses less digits than its factorization.

1059172638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176528778.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 1059172638 is about 32544.9326009442. The cubic root of 1059172638 is about 1019.3474738432.

The spelling of 1059172638 in words is "one billion, fifty-nine million, one hundred seventy-two thousand, six hundred thirty-eight".