40189485 has 32 divisors (see below), whose sum is σ = 75866112. Its totient is φ = 17778240.

The previous prime is 40189483. The next prime is 40189489. The reversal of 40189485 is 58498104.

It is not a de Polignac number, because 40189485 - 2¹ = 40189483 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40189483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2919 + ... + 9428.

It is an arithmetic number, because the mean of its divisors is an integer number (2370816).

Almost surely, 2^40189485 is an apocalyptic number.

It is an amenable number.

40189485 is a deficient number, since it is larger than the sum of its proper divisors (35676627).

40189485 is a wasteful number, since it uses less digits than its factorization.

40189485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12393.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 40189485 is about 6339.5177261366. The cubic root of 40189485 is about 342.5343635047.

The spelling of 40189485 in words is "forty million, one hundred eighty-nine thousand, four hundred eighty-five".