4040397220 has 48 divisors (see below), whose sum is σ = 8647446528. Its totient is φ = 1585330560.

The previous prime is 4040397197. The next prime is 4040397223. The reversal of 4040397220 is 227930404.

It is not an unprimeable number, because it can be changed into a prime (4040397223) 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, 462937 + ... + 471583.

It is an arithmetic number, because the mean of its divisors is an integer number (180155136).

Almost surely, 2^4040397220 is an apocalyptic number.

It is an amenable number.

4040397220 is an abundant number, since it is smaller than the sum of its proper divisors (4607049308).

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

4040397220 is a wasteful number, since it uses less digits than its factorization.

4040397220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100 (or 9098 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 4040397220 is about 63564.1189665994. The cubic root of 4040397220 is about 1592.7270448570.

The spelling of 4040397220 in words is "four billion, forty million, three hundred ninety-seven thousand, two hundred twenty".