1612622004 has 48 divisors (see below), whose sum is σ = 4405220736. Its totient is φ = 449510400.

The previous prime is 1612621987. The next prime is 1612622009. The reversal of 1612622004 is 4002262161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612622009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230677 + ... + 237564.

It is an arithmetic number, because the mean of its divisors is an integer number (91775432).

Almost surely, 2^1612622004 is an apocalyptic number.

1612622004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1612622004 is an abundant number, since it is smaller than the sum of its proper divisors (2792598732).

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

1612622004 is a wasteful number, since it uses less digits than its factorization.

1612622004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468296 (or 468294 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1612622004 is about 40157.4651092421. The cubic root of 1612622004 is about 1172.6746233461.

Adding to 1612622004 its reverse (4002262161), we get a palindrome (5614884165).

The spelling of 1612622004 in words is "one billion, six hundred twelve million, six hundred twenty-two thousand, four".