1802146406 has 4 divisors (see below), whose sum is σ = 2703219612. Its totient is φ = 901073202.

The previous prime is 1802146399. The next prime is 1802146429. The reversal of 1802146406 is 6046412081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6046412081 = 31 ⋅195045551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450536600 + ... + 450536603.

It is an arithmetic number, because the mean of its divisors is an integer number (675804903).

Almost surely, 2^1802146406 is an apocalyptic number.

1802146406 is a deficient number, since it is larger than the sum of its proper divisors (901073206).

1802146406 is an equidigital number, since it uses as much as digits as its factorization.

1802146406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901073205.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1802146406 is about 42451.6949720503. The cubic root of 1802146406 is about 1216.9237209371.

Adding to 1802146406 its reverse (6046412081), we get a palindrome (7848558487).

The spelling of 1802146406 in words is "one billion, eight hundred two million, one hundred forty-six thousand, four hundred six".