166403460 has 24 divisors (see below), whose sum is σ = 465929856. Its totient is φ = 44374240.

The previous prime is 166403449. The next prime is 166403491. The reversal of 166403460 is 64304661.

166403460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166403460² = 55380222999943200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1386636 + ... + 1386755.

It is an arithmetic number, because the mean of its divisors is an integer number (19413744).

Almost surely, 2^166403460 is an apocalyptic number.

166403460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166403460 is an abundant number, since it is smaller than the sum of its proper divisors (299526396).

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

166403460 is a wasteful number, since it uses less digits than its factorization.

166403460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773403 (or 2773401 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 166403460 is about 12899.7465091373. The cubic root of 166403460 is about 550.0313590935.

It can be divided in two parts, 16640 and 3460, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 166403460 in words is "one hundred sixty-six million, four hundred three thousand, four hundred sixty".