3556494 has 32 divisors (see below), whose sum is σ = 8029440. Its totient is φ = 1166616.

The previous prime is 3556493. The next prime is 3556499. The reversal of 3556494 is 4946553.

It is a happy number.

3556494 is a `hidden beast` number, since 3 + 5 + 5 + 649 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3556493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3127 + ... + 4109.

It is an arithmetic number, because the mean of its divisors is an integer number (250920).

Almost surely, 2^3556494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3556494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4014720).

3556494 is an abundant number, since it is smaller than the sum of its proper divisors (4472946).

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

3556494 is a wasteful number, since it uses less digits than its factorization.

3556494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1055 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 3556494 is about 1885.8669094080. The cubic root of 3556494 is about 152.6419926266.

The spelling of 3556494 in words is "three million, five hundred fifty-six thousand, four hundred ninety-four".