3649420290 has 16 divisors (see below), whose sum is σ = 8758608768. Its totient is φ = 973178736.

The previous prime is 3649420289. The next prime is 3649420321. The reversal of 3649420290 is 920249463.

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, 60823642 + ... + 60823701.

It is an arithmetic number, because the mean of its divisors is an integer number (547413048).

Almost surely, 2^3649420290 is an apocalyptic number.

3649420290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3649420290 is an abundant number, since it is smaller than the sum of its proper divisors (5109188478).

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

3649420290 is a wasteful number, since it uses less digits than its factorization.

3649420290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121647353.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 3649420290 is about 60410.4319633621. The cubic root of 3649420290 is about 1539.6002068404.

The spelling of 3649420290 in words is "three billion, six hundred forty-nine million, four hundred twenty thousand, two hundred ninety".