3280690 has 16 divisors (see below), whose sum is σ = 6748992. Its totient is φ = 1124784.

The previous prime is 3280687. The next prime is 3280691. The reversal of 3280690 is 960823.

It is a super-2 number, since 2×3280690² = 21525853752200, which contains 22 as substring.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3280691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23364 + ... + 23503.

It is an arithmetic number, because the mean of its divisors is an integer number (421812).

Almost surely, 2^3280690 is an apocalyptic number.

3280690 is an abundant number, since it is smaller than the sum of its proper divisors (3468302).

3280690 is a wasteful number, since it uses less digits than its factorization.

3280690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46881.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3280690 is about 1811.2675119926. The cubic root of 3280690 is about 148.5895947602.

It can be divided in two parts, 32806 and 90, that added together give a triangular number (32896 = T₂₅₆).

The spelling of 3280690 in words is "three million, two hundred eighty thousand, six hundred ninety".