1664150 has 24 divisors (see below), whose sum is σ = 3140424. Its totient is φ = 656000.

The previous prime is 1664123. The next prime is 1664227. The reversal of 1664150 is 514661.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3950 + ... + 4350.

It is an arithmetic number, because the mean of its divisors is an integer number (130851).

2^1664150 is an apocalyptic number.

1664150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1664150 is a deficient number, since it is larger than the sum of its proper divisors (1476274).

1664150 is a wasteful number, since it uses less digits than its factorization.

1664150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1664150 is about 1290.0193796994. The cubic root of 1664150 is about 118.5034033217.

It can be divided in two parts, 166 and 4150, that multiplied together give a square (688900 = 830²).

The spelling of 1664150 in words is "one million, six hundred sixty-four thousand, one hundred fifty".