3493890 has 24 divisors (see below), whose sum is σ = 9084348. Its totient is φ = 931680.

The previous prime is 3493883. The next prime is 3493909. The reversal of 3493890 is 983943.

It can be written as a sum of positive squares in 2 ways, for example, as 3493161 + 729 = 1869^2 + 27^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19321 + ... + 19500.

Almost surely, 2^3493890 is an apocalyptic number.

3493890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3493890 is an abundant number, since it is smaller than the sum of its proper divisors (5590458).

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

3493890 is a wasteful number, since it uses less digits than its factorization.

3493890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38834 (or 38831 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3493890 is about 1869.1950139030. The cubic root of 3493890 is about 151.7410468533.

The spelling of 3493890 in words is "three million, four hundred ninety-three thousand, eight hundred ninety".