162381090 has 16 divisors (see below), whose sum is σ = 389714688. Its totient is φ = 43301616.

The previous prime is 162381083. The next prime is 162381101. The reversal of 162381090 is 90183261.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 5412703 = 162381090 / (1 + 6 + 2 + 3 + 8 + 1 + 0 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2706322 + ... + 2706381.

It is an arithmetic number, because the mean of its divisors is an integer number (24357168).

Almost surely, 2^162381090 is an apocalyptic number.

162381090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162381090 is an abundant number, since it is smaller than the sum of its proper divisors (227333598).

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

162381090 is a wasteful number, since it uses less digits than its factorization.

162381090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412713.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 162381090 is about 12742.8838965126. The cubic root of 162381090 is about 545.5633038940.

The spelling of 162381090 in words is "one hundred sixty-two million, three hundred eighty-one thousand, ninety".