162663440 has 40 divisors (see below), whose sum is σ = 378730968. Its totient is φ = 64972800.

The previous prime is 162663439. The next prime is 162663451. The reversal of 162663440 is 44366261.

It can be written as a sum of positive squares in 4 ways, for example, as 1982464 + 160680976 = 1408^2 + 12676^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 162663397 and 162663406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95234 + ... + 96926.

Almost surely, 2^162663440 is an apocalyptic number.

162663440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162663440 is an abundant number, since it is smaller than the sum of its proper divisors (216067528).

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

162663440 is a wasteful number, since it uses less digits than its factorization.

162663440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907 (or 2901 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 162663440 is about 12753.9578170856. The cubic root of 162663440 is about 545.8793312569.

The spelling of 162663440 in words is "one hundred sixty-two million, six hundred sixty-three thousand, four hundred forty".