1662741072 has 60 divisors (see below), whose sum is σ = 4898287680. Its totient is φ = 525075264.

The previous prime is 1662741061. The next prime is 1662741089. The reversal of 1662741072 is 2701472661.

1662741072 is a `hidden beast` number, since 16 + 627 + 4 + 10 + 7 + 2 = 666.

It is a super-3 number, since 3×1662741072³ (a number of 29 digits) contains 333 as substring.

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 11 ways as a sum of consecutive naturals, for example, 301128 + ... + 306599.

It is an arithmetic number, because the mean of its divisors is an integer number (81638128).

Almost surely, 2^1662741072 is an apocalyptic number.

1662741072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1662741072 is an abundant number, since it is smaller than the sum of its proper divisors (3235546608).

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

1662741072 is a wasteful number, since it uses less digits than its factorization.

1662741072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607760 (or 607751 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 1662741072 is about 40776.7221831280. The cubic root of 1662741072 is about 1184.6995082762.

The spelling of 1662741072 in words is "one billion, six hundred sixty-two million, seven hundred forty-one thousand, seventy-two".