3495780 has 36 divisors (see below), whose sum is σ = 10604412. Its totient is φ = 932160.

The previous prime is 3495773. The next prime is 3495781. The reversal of 3495780 is 875943.

It can be written as a sum of positive squares in 2 ways, for example, as 2585664 + 910116 = 1608^2 + 954^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (3495781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9531 + ... + 9890.

It is an arithmetic number, because the mean of its divisors is an integer number (294567).

Almost surely, 2^3495780 is an apocalyptic number.

3495780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3495780 is an abundant number, since it is smaller than the sum of its proper divisors (7108632).

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

3495780 is a wasteful number, since it uses less digits than its factorization.

3495780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19436 (or 19431 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 3495780 is about 1869.7005107771. The cubic root of 3495780 is about 151.7684030743.

The spelling of 3495780 in words is "three million, four hundred ninety-five thousand, seven hundred eighty".