162073840 has 20 divisors (see below), whose sum is σ = 376821864. Its totient is φ = 64829504.

The previous prime is 162073831. The next prime is 162073843. The reversal of 162073840 is 48370261.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×162073840² = 52535859224691200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162073843) 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, 1012882 + ... + 1013041.

Almost surely, 2^162073840 is an apocalyptic number.

162073840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162073840 is an abundant number, since it is smaller than the sum of its proper divisors (214748024).

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

162073840 is a wasteful number, since it uses less digits than its factorization.

162073840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025936 (or 2025930 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 162073840 is about 12730.8224400468. The cubic root of 162073840 is about 545.2189900742.

The spelling of 162073840 in words is "one hundred sixty-two million, seventy-three thousand, eight hundred forty".