1601418 has 48 divisors (see below), whose sum is σ = 4021920. Its totient is φ = 421344.

The previous prime is 1601399. The next prime is 1601423. The reversal of 1601418 is 8141061.

It is a super-2 number, since 2×1601418² = 5129079221448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1601394 and 1601403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3613 + ... + 4031.

It is an arithmetic number, because the mean of its divisors is an integer number (83790).

2^1601418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1601418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2010960).

1601418 is an abundant number, since it is smaller than the sum of its proper divisors (2420502).

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

1601418 is a wasteful number, since it uses less digits than its factorization.

1601418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1601418 is about 1265.4714536488. The cubic root of 1601418 is about 116.9952514692.

Adding to 1601418 its reverse (8141061), we get a palindrome (9742479).

The spelling of 1601418 in words is "one million, six hundred one thousand, four hundred eighteen".