1616225044 has 24 divisors (see below), whose sum is σ = 3402580160. Its totient is φ = 656211456.

The previous prime is 1616225029. The next prime is 1616225059. The reversal of 1616225044 is 4405226161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1616225029) and next prime (1616225059).

It is a super-2 number, since 2×1616225044² = 5224366785705603872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616224997 and 1616225015.

It is a congruent number.

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, 1518477 + ... + 1519540.

Almost surely, 2^1616225044 is an apocalyptic number.

1616225044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1616225044 is an abundant number, since it is smaller than the sum of its proper divisors (1786355116).

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

1616225044 is a wasteful number, since it uses less digits than its factorization.

1616225044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038047 (or 3038045 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1616225044 is about 40202.3014764080. The cubic root of 1616225044 is about 1173.5473326600.

The spelling of 1616225044 in words is "one billion, six hundred sixteen million, two hundred twenty-five thousand, forty-four".