40642510 has 16 divisors (see below), whose sum is σ = 73233072. Its totient is φ = 16240000.

The previous prime is 40642499. The next prime is 40642517. The reversal of 40642510 is 1524604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40642517) 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, 13110 + ... + 15910.

It is an arithmetic number, because the mean of its divisors is an integer number (4577067).

Almost surely, 2^40642510 is an apocalyptic number.

40642510 is a deficient number, since it is larger than the sum of its proper divisors (32590562).

40642510 is a wasteful number, since it uses less digits than its factorization.

40642510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40642510 is about 6375.1478414230. The cubic root of 40642510 is about 343.8165993274.

The spelling of 40642510 in words is "forty million, six hundred forty-two thousand, five hundred ten".