1616449492 has 48 divisors (see below), whose sum is σ = 3392005120. Its totient is φ = 659404800.

The previous prime is 1616449469. The next prime is 1616449511. The reversal of 1616449492 is 2949446161.

It is a super-2 number, since 2×1616449492² = 5225817920374116128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37684 + ... + 68212.

Almost surely, 2^1616449492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1616449492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1696002560).

1616449492 is an abundant number, since it is smaller than the sum of its proper divisors (1775555628).

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

1616449492 is a wasteful number, since it uses less digits than its factorization.

1616449492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30632 (or 30630 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 1616449492 is about 40205.0928614771. The cubic root of 1616449492 is about 1173.6016543360.

It can be divided in two parts, 16164 and 49492, that added together give a palindrome (65656).

The spelling of 1616449492 in words is "one billion, six hundred sixteen million, four hundred forty-nine thousand, four hundred ninety-two".