1729480155 has 16 divisors (see below), whose sum is σ = 2980027680. Its totient is φ = 851436288.

The previous prime is 1729480099. The next prime is 1729480169. The reversal of 1729480155 is 5510849271.

It is not a de Polignac number, because 1729480155 - 2¹⁵ = 1729447387 is a prime.

It is a super-2 number, since 2×1729480155² = 5982203213077648050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4434370 + ... + 4434759.

It is an arithmetic number, because the mean of its divisors is an integer number (186251730).

Almost surely, 2^1729480155 is an apocalyptic number.

1729480155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1729480155 is a deficient number, since it is larger than the sum of its proper divisors (1250547525).

1729480155 is a wasteful number, since it uses less digits than its factorization.

1729480155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869150.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 1729480155 is about 41587.0190684545. The cubic root of 1729480155 is about 1200.3425306902.

The spelling of 1729480155 in words is "one billion, seven hundred twenty-nine million, four hundred eighty thousand, one hundred fifty-five".