164491452 has 24 divisors (see below), whose sum is σ = 426459600. Its totient is φ = 54830448.

The previous prime is 164491447. The next prime is 164491471. The reversal of 164491452 is 254194461.

164491452 is a `hidden beast` number, since 1 + 644 + 9 + 1 + 4 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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, 761427 + ... + 761642.

It is an arithmetic number, because the mean of its divisors is an integer number (17769150).

Almost surely, 2^164491452 is an apocalyptic number.

164491452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164491452 is an abundant number, since it is smaller than the sum of its proper divisors (261968148).

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

164491452 is a wasteful number, since it uses less digits than its factorization.

164491452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523082 (or 1523074 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 164491452 is about 12825.4220983171. The cubic root of 164491452 is about 547.9165829304.

It can be divided in two parts, 1644 and 91452, that added together give a triangular number (93096 = T₄₃₁).

The spelling of 164491452 in words is "one hundred sixty-four million, four hundred ninety-one thousand, four hundred fifty-two".