162045440 has 40 divisors (see below), whose sum is σ = 388535400. Its totient is φ = 64817152.

The previous prime is 162045437. The next prime is 162045449. The reversal of 162045440 is 44540261.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162045449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29090 + ... + 34209.

It is an arithmetic number, because the mean of its divisors is an integer number (9713385).

Almost surely, 2^162045440 is an apocalyptic number.

162045440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162045440 is an abundant number, since it is smaller than the sum of its proper divisors (226489960).

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

162045440 is an frugal number, since it uses more digits than its factorization.

162045440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63322 (or 63306 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 162045440 is about 12729.7069879868. The cubic root of 162045440 is about 545.1871421958.

The spelling of 162045440 in words is "one hundred sixty-two million, forty-five thousand, four hundred forty".