1662343254 has 72 divisors (see below), whose sum is σ = 4263548016. Its totient is φ = 464983200.

The previous prime is 1662343253. The next prime is 1662343279. The reversal of 1662343254 is 4523432661.

1662343254 is a `hidden beast` number, since 1 + 6 + 62 + 343 + 254 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662343253) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1042 + ... + 57669.

Almost surely, 2^1662343254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662343254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2131774008).

1662343254 is an abundant number, since it is smaller than the sum of its proper divisors (2601204762).

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

1662343254 is a wasteful number, since it uses less digits than its factorization.

1662343254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58754 (or 58740 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 1662343254 is about 40771.8438876635. The cubic root of 1662343254 is about 1184.6050192447.

The spelling of 1662343254 in words is "one billion, six hundred sixty-two million, three hundred forty-three thousand, two hundred fifty-four".