162891420 has 48 divisors (see below), whose sum is σ = 458444448. Its totient is φ = 43214080.

The previous prime is 162891409. The next prime is 162891431. The reversal of 162891420 is 24198261.

162891420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (162891409) and next prime (162891431).

It is a super-3 number, since 3×162891420³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4930 + ... + 18710.

It is an arithmetic number, because the mean of its divisors is an integer number (9550926).

Almost surely, 2^162891420 is an apocalyptic number.

162891420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162891420 is an abundant number, since it is smaller than the sum of its proper divisors (295553028).

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

162891420 is a wasteful number, since it uses less digits than its factorization.

162891420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13990 (or 13988 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 162891420 is about 12762.8923054298. The cubic root of 162891420 is about 546.1342368760.

The spelling of 162891420 in words is "one hundred sixty-two million, eight hundred ninety-one thousand, four hundred twenty".