7457220100 has 72 divisors (see below), whose sum is σ = 17895292128. Its totient is φ = 2674540800.

The previous prime is 7457220061. The next prime is 7457220101. The reversal of 7457220100 is 10227547.

It is a super-2 number, since 2×7457220100² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7457220101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33867 + ... + 126733.

It is an arithmetic number, because the mean of its divisors is an integer number (248545724).

Almost surely, 2^7457220100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7457220100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8947646064).

7457220100 is an abundant number, since it is smaller than the sum of its proper divisors (10438072028).

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

7457220100 is a wasteful number, since it uses less digits than its factorization.

7457220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92965 (or 92958 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 7457220100 is about 86355.1972958200. The cubic root of 7457220100 is about 1953.7049963798.

Adding to 7457220100 its reverse (10227547), we get a palindrome (7467447647).

The spelling of 7457220100 in words is "seven billion, four hundred fifty-seven million, two hundred twenty thousand, one hundred".