925221017400 has 96 divisors (see below), whose sum is σ = 2869970737200. Its totient is φ = 246572006400.

The previous prime is 925221017389. The next prime is 925221017407. The reversal of 925221017400 is 4710122529.

It is a super-2 number, since 2×925221017400² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (925221017407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 486210 + ... + 1444590.

Almost surely, 2^925221017400 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 925221017400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434985368600).

925221017400 is an abundant number, since it is smaller than the sum of its proper divisors (1944749719800).

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

925221017400 is a wasteful number, since it uses less digits than its factorization.

925221017400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960009 (or 960000 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

Adding to 925221017400 its reverse (4710122529), we get a palindrome (929931139929).

The spelling of 925221017400 in words is "nine hundred twenty-five billion, two hundred twenty-one million, seventeen thousand, four hundred".