162906640 has 40 divisors (see below), whose sum is σ = 407895768. Its totient is φ = 60149760.

The previous prime is 162906619. The next prime is 162906641. The reversal of 162906640 is 46609261.

It can be written as a sum of positive squares in 4 ways, for example, as 802816 + 162103824 = 896^2 + 12732^2 .

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

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 162906596 and 162906605.

It is not an unprimeable number, because it can be changed into a prime (162906641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77281 + ... + 79360.

Almost surely, 2^162906640 is an apocalyptic number.

162906640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162906640 is an abundant number, since it is smaller than the sum of its proper divisors (244989128).

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

162906640 is a wasteful number, since it uses less digits than its factorization.

162906640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156667 (or 156661 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 162906640 is about 12763.4885513327. The cubic root of 162906640 is about 546.1512459655.

The spelling of 162906640 in words is "one hundred sixty-two million, nine hundred six thousand, six hundred forty".