4070721090 has 32 divisors (see below), whose sum is σ = 9779601600. Its totient is φ = 1084428864.

The previous prime is 4070721059. The next prime is 4070721091. The reversal of 4070721090 is 901270704.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (4070721091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38140 + ... + 97959.

It is an arithmetic number, because the mean of its divisors is an integer number (305612550).

Almost surely, 2^4070721090 is an apocalyptic number.

4070721090 is an abundant number, since it is smaller than the sum of its proper divisors (5708880510).

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

4070721090 is a wasteful number, since it uses less digits than its factorization.

4070721090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137106.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 4070721090 is about 63802.2028616567. The cubic root of 4070721090 is about 1596.7016806133.

Adding to 4070721090 its reverse (901270704), we get a palindrome (4971991794).

The spelling of 4070721090 in words is "four billion, seventy million, seven hundred twenty-one thousand, ninety".