1554066 has 40 divisors (see below), whose sum is σ = 3567564. Its totient is φ = 505440.

The previous prime is 1554043. The next prime is 1554073. The reversal of 1554066 is 6604551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1476225 + 77841 = 1215^2 + 279^2 .

It is a super-2 number, since 2×1554066² = 4830242264712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8496 + ... + 8676.

2^1554066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1554066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1783782).

1554066 is an abundant number, since it is smaller than the sum of its proper divisors (2013498).

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

1554066 is a wasteful number, since it uses less digits than its factorization.

1554066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1554066 is about 1246.6218352010. The cubic root of 1554066 is about 115.8305591984.

The spelling of 1554066 in words is "one million, five hundred fifty-four thousand, sixty-six".