40577631 has 4 divisors (see below), whose sum is σ = 54103512. Its totient is φ = 27051752.

The previous prime is 40577629. The next prime is 40577653. The reversal of 40577631 is 13677504.

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

It is a cyclic number.

It is not a de Polignac number, because 40577631 - 2¹ = 40577629 is a prime.

It is a super-2 number, since 2×40577631² = 3293088275144322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40577592 and 40577601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40577431) 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, 6762936 + ... + 6762941.

It is an arithmetic number, because the mean of its divisors is an integer number (13525878).

Almost surely, 2^40577631 is an apocalyptic number.

40577631 is a deficient number, since it is larger than the sum of its proper divisors (13525881).

40577631 is a wasteful number, since it uses less digits than its factorization.

40577631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525880.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 40577631 is about 6370.0573780775. The cubic root of 40577631 is about 343.6335532408.

The spelling of 40577631 in words is "forty million, five hundred seventy-seven thousand, six hundred thirty-one".