11901040 has 20 divisors (see below), whose sum is σ = 27670104. Its totient is φ = 4760384.

The previous prime is 11901031. The next prime is 11901073. The reversal of 11901040 is 4010911.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74302 + ... + 74461.

Almost surely, 2^11901040 is an apocalyptic number.

11901040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11901040 is an abundant number, since it is smaller than the sum of its proper divisors (15769064).

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

11901040 is a wasteful number, since it uses less digits than its factorization.

11901040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148776 (or 148770 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 11901040 is about 3449.7883993080. The cubic root of 11901040 is about 228.3117721070.

Adding to 11901040 its reverse (4010911), we get a palindrome (15911951).

The spelling of 11901040 in words is "eleven million, nine hundred one thousand, forty".