4055621240 has 32 divisors (see below), whose sum is σ = 9954707760. Its totient is φ = 1474771200.

The previous prime is 4055621233. The next prime is 4055621263. The reversal of 4055621240 is 421265504.

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, 4608221 + ... + 4609100.

Almost surely, 2^4055621240 is an apocalyptic number.

4055621240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4055621240 is an abundant number, since it is smaller than the sum of its proper divisors (5899086520).

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

4055621240 is a wasteful number, since it uses less digits than its factorization.

4055621240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9217343 (or 9217339 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 4055621240 is about 63683.7596251980. The cubic root of 4055621240 is about 1594.7249769027.

Adding to 4055621240 its reverse (421265504), we get a palindrome (4476886744).

The spelling of 4055621240 in words is "four billion, fifty-five million, six hundred twenty-one thousand, two hundred forty".