1620426150 has 144 divisors (see below), whose sum is σ = 5060390400. Its totient is φ = 364063680.

The previous prime is 1620426139. The next prime is 1620426151. The reversal of 1620426150 is 516240261.

1620426150 is a `hidden beast` number, since 1 + 6 + 2 + 0 + 42 + 615 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620426151) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 181491 + ... + 190209.

It is an arithmetic number, because the mean of its divisors is an integer number (35141600).

Almost surely, 2^1620426150 is an apocalyptic number.

1620426150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1620426150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2530195200).

1620426150 is an abundant number, since it is smaller than the sum of its proper divisors (3439964250).

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

1620426150 is a wasteful number, since it uses less digits than its factorization.

1620426150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8803 (or 8795 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1620426150 is about 40254.5171378319. The cubic root of 1620426150 is about 1174.5632660901.

The spelling of 1620426150 in words is "one billion, six hundred twenty million, four hundred twenty-six thousand, one hundred fifty".