1662009084 has 48 divisors (see below), whose sum is σ = 4314203040. Its totient is φ = 553322880.

The previous prime is 1662009043. The next prime is 1662009101. The reversal of 1662009084 is 4809002661.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83104 + ... + 101144.

It is an arithmetic number, because the mean of its divisors is an integer number (89879230).

Almost surely, 2^1662009084 is an apocalyptic number.

It is an amenable number.

1662009084 is an abundant number, since it is smaller than the sum of its proper divisors (2652193956).

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

1662009084 is a wasteful number, since it uses less digits than its factorization.

1662009084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18907 (or 18899 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1662009084 is about 40767.7456330369. The cubic root of 1662009084 is about 1184.5256361236.

The spelling of 1662009084 in words is "one billion, six hundred sixty-two million, nine thousand, eighty-four".