40688151 has 16 divisors (see below), whose sum is σ = 64002048. Its totient is φ = 22500000.

The previous prime is 40688147. The next prime is 40688201. The reversal of 40688151 is 15188604.

It is not a de Polignac number, because 40688151 - 2² = 40688147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40688251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30600 + ... + 31901.

It is an arithmetic number, because the mean of its divisors is an integer number (4000128).

Almost surely, 2^40688151 is an apocalyptic number.

40688151 is a deficient number, since it is larger than the sum of its proper divisors (23313897).

40688151 is a wasteful number, since it uses less digits than its factorization.

40688151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62542.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 40688151 is about 6378.7264402857. The cubic root of 40688151 is about 343.9452516756.

The spelling of 40688151 in words is "forty million, six hundred eighty-eight thousand, one hundred fifty-one".