40542402 has 8 divisors (see below), whose sum is σ = 81084816. Its totient is φ = 13514132.

The previous prime is 40542401. The next prime is 40542419. The reversal of 40542402 is 20424504.

It is a sphenic number, since it is the product of 3 distinct primes.

40542402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40542401) 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, 3378528 + ... + 3378539.

It is an arithmetic number, because the mean of its divisors is an integer number (10135602).

Almost surely, 2^40542402 is an apocalyptic number.

40542402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40542402 is a wasteful number, since it uses less digits than its factorization.

40542402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757072.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 40542402 is about 6367.2915749163. The cubic root of 40542402 is about 343.5340783066.

Adding to 40542402 its reverse (20424504), we get a palindrome (60966906).

The spelling of 40542402 in words is "forty million, five hundred forty-two thousand, four hundred two".