40491342 has 24 divisors (see below), whose sum is σ = 88245144. Its totient is φ = 13418064.

The previous prime is 40491317. The next prime is 40491343. The reversal of 40491342 is 24319404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40491343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3388 + ... + 9615.

It is an arithmetic number, because the mean of its divisors is an integer number (3676881).

Almost surely, 2^40491342 is an apocalyptic number.

40491342 is an abundant number, since it is smaller than the sum of its proper divisors (47753802).

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

40491342 is a wasteful number, since it uses less digits than its factorization.

40491342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13184 (or 13181 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 40491342 is about 6363.2807575967. The cubic root of 40491342 is about 343.3897995753.

The spelling of 40491342 in words is "forty million, four hundred ninety-one thousand, three hundred forty-two".