3500490 has 64 divisors (see below), whose sum is σ = 9768960. Its totient is φ = 786240.

The previous prime is 3500477. The next prime is 3500509. The reversal of 3500490 is 940053.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16485 + ... + 16695.

It is an arithmetic number, because the mean of its divisors is an integer number (152640).

Almost surely, 2^3500490 is an apocalyptic number.

3500490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3500490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4884480).

3500490 is an abundant number, since it is smaller than the sum of its proper divisors (6268470).

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

3500490 is a wasteful number, since it uses less digits than its factorization.

3500490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 3500490 is about 1870.9596468123. The cubic root of 3500490 is about 151.8365336374.

The spelling of 3500490 in words is "three million, five hundred thousand, four hundred ninety".