9401101920 has 192 divisors, whose sum is σ = 37604528640. Its totient is φ = 2148816384.

The previous prime is 9401101909. The next prime is 9401101961. The reversal of 9401101920 is 291011049.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125202 + ... + 185681.

It is an arithmetic number, because the mean of its divisors is an integer number (195856920).

Almost surely, 2^9401101920 is an apocalyptic number.

9401101920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9401101920 is an abundant number, since it is smaller than the sum of its proper divisors (28203426720).

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

9401101920 is a wasteful number, since it uses less digits than its factorization.

9401101920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310914 (or 310900 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 9401101920 is about 96959.2797002948. The cubic root of 9401101920 is about 2110.5367576437.

Adding to 9401101920 its reverse (291011049), we get a palindrome (9692112969).

The spelling of 9401101920 in words is "nine billion, four hundred one million, one hundred one thousand, nine hundred twenty".