11901432 has 16 divisors (see below), whose sum is σ = 29753640. Its totient is φ = 3967136.

The previous prime is 11901389. The next prime is 11901437. The reversal of 11901432 is 23410911.

It is a junction number, because it is equal to n+sod(n) for n = 11901399 and 11901408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11901437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247923 + ... + 247970.

Almost surely, 2^11901432 is an apocalyptic number.

11901432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11901432 is an abundant number, since it is smaller than the sum of its proper divisors (17852208).

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

11901432 is a wasteful number, since it uses less digits than its factorization.

11901432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495902 (or 495898 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 11901432 is about 3449.8452139190. The cubic root of 11901432 is about 228.3142788132.

The spelling of 11901432 in words is "eleven million, nine hundred one thousand, four hundred thirty-two".