329493690 has 32 divisors (see below), whose sum is σ = 878650560. Its totient is φ = 87864912.

The previous prime is 329493629. The next prime is 329493707. The reversal of 329493690 is 96394923.

It is a super-2 number, since 2×329493690² = 217132183499632200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 609904 + ... + 610443.

It is an arithmetic number, because the mean of its divisors is an integer number (27457830).

Almost surely, 2^329493690 is an apocalyptic number.

329493690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

329493690 is an abundant number, since it is smaller than the sum of its proper divisors (549156870).

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

329493690 is a wasteful number, since it uses less digits than its factorization.

329493690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220363 (or 1220357 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 329493690 is about 18151.9610510821. The cubic root of 329493690 is about 690.6887263050.

The spelling of 329493690 in words is "three hundred twenty-nine million, four hundred ninety-three thousand, six hundred ninety".