162490400 has 72 divisors (see below), whose sum is σ = 413973504. Its totient is φ = 62163200.

The previous prime is 162490399. The next prime is 162490409. The reversal of 162490400 is 4094261.

It is a self number, because there is not a number n which added to its sum of digits gives 162490400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162490409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13985 + ... + 22815.

It is an arithmetic number, because the mean of its divisors is an integer number (5749632).

Almost surely, 2^162490400 is an apocalyptic number.

162490400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162490400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206986752).

162490400 is an abundant number, since it is smaller than the sum of its proper divisors (251483104).

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

162490400 is a wasteful number, since it uses less digits than its factorization.

162490400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8874 (or 8861 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 162490400 is about 12747.1722354411. The cubic root of 162490400 is about 545.6856952967.

The spelling of 162490400 in words is "one hundred sixty-two million, four hundred ninety thousand, four hundred".