85401432 has 32 divisors (see below), whose sum is σ = 237226800. Its totient is φ = 28467072.

The previous prime is 85401431. The next prime is 85401443. The reversal of 85401432 is 23410458.

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

It is a junction number, because it is equal to n+sod(n) for n = 85401396 and 85401405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85401431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197473 + ... + 197904.

Almost surely, 2^85401432 is an apocalyptic number.

It is an amenable number.

85401432 is an abundant number, since it is smaller than the sum of its proper divisors (151825368).

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

85401432 is a wasteful number, since it uses less digits than its factorization.

85401432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395392 (or 395382 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 85401432 is about 9241.2895204079. The cubic root of 85401432 is about 440.3740483189.

The spelling of 85401432 in words is "eighty-five million, four hundred one thousand, four hundred thirty-two".