2049366864 has 80 divisors (see below), whose sum is σ = 5617890432. Its totient is φ = 641531904.

The previous prime is 2049366863. The next prime is 2049366899. The reversal of 2049366864 is 4686639402.

It is a super-2 number, since 2×2049366864² = 8399809086522388992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049366863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407952 + ... + 412944.

Almost surely, 2^2049366864 is an apocalyptic number.

2049366864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2049366864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2808945216).

2049366864 is an abundant number, since it is smaller than the sum of its proper divisors (3568523568).

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

2049366864 is a wasteful number, since it uses less digits than its factorization.

2049366864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524 (or 5518 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 48.

The square root of 2049366864 is about 45269.9333332842. The cubic root of 2049366864 is about 1270.2032997543.

The spelling of 2049366864 in words is "two billion, forty-nine million, three hundred sixty-six thousand, eight hundred sixty-four".