40077651 has 4 divisors (see below), whose sum is σ = 53436872. Its totient is φ = 26718432.

The previous prime is 40077649. The next prime is 40077659. The reversal of 40077651 is 15677004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40077651 - 2¹ = 40077649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40077659) 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, 6679606 + ... + 6679611.

It is an arithmetic number, because the mean of its divisors is an integer number (13359218).

Almost surely, 2^40077651 is an apocalyptic number.

40077651 is a deficient number, since it is larger than the sum of its proper divisors (13359221).

40077651 is a wasteful number, since it uses less digits than its factorization.

40077651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13359220.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 40077651 is about 6330.6911944905. The cubic root of 40077651 is about 342.2163485238.

The spelling of 40077651 in words is "forty million, seventy-seven thousand, six hundred fifty-one".