40664142 has 24 divisors (see below), whose sum is σ = 92743560. Its totient is φ = 12841200.

The previous prime is 40664101. The next prime is 40664179. The reversal of 40664142 is 24146604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59109 + ... + 59792.

It is an arithmetic number, because the mean of its divisors is an integer number (3864315).

Almost surely, 2^40664142 is an apocalyptic number.

40664142 is an abundant number, since it is smaller than the sum of its proper divisors (52079418).

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

40664142 is a wasteful number, since it uses less digits than its factorization.

40664142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118928 (or 118925 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40664142 is about 6376.8442038363. The cubic root of 40664142 is about 343.8775873712.

The spelling of 40664142 in words is "forty million, six hundred sixty-four thousand, one hundred forty-two".