173455490 has 16 divisors (see below), whose sum is σ = 336237048. Its totient is φ = 64045056.

The previous prime is 173455483. The next prime is 173455501. The reversal of 173455490 is 94554371.

It can be written as a sum of positive squares in 4 ways, for example, as 106853569 + 66601921 = 10337^2 + 8161^2 .

It is a super-2 number, since 2×173455490² = 60173614022280200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667007 + ... + 667266.

Almost surely, 2^173455490 is an apocalyptic number.

173455490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

173455490 is a deficient number, since it is larger than the sum of its proper divisors (162781558).

173455490 is a wasteful number, since it uses less digits than its factorization.

173455490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334293.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 173455490 is about 13170.2501874490. The cubic root of 173455490 is about 557.6940572670.

The spelling of 173455490 in words is "one hundred seventy-three million, four hundred fifty-five thousand, four hundred ninety".