3626449920 has 352 divisors, whose sum is σ = 13254734400. Its totient is φ = 939589632.

The previous prime is 3626449919. The next prime is 3626449933. The reversal of 3626449920 is 299446263.

It is a super-2 number, since 2×3626449920² = 26302278044536012800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5114526 + ... + 5115234.

Almost surely, 2^3626449920 is an apocalyptic number.

3626449920 is a gapful number since it is divisible by the number (30) 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 3626449920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6627367200).

3626449920 is an abundant number, since it is smaller than the sum of its proper divisors (9628284480).

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

3626449920 is a wasteful number, since it uses less digits than its factorization.

3626449920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 3626449920 is about 60220.0126203906. The cubic root of 3626449920 is about 1536.3631953638.

The spelling of 3626449920 in words is "three billion, six hundred twenty-six million, four hundred forty-nine thousand, nine hundred twenty".