40777131 has 8 divisors (see below), whose sum is σ = 54456640. Its totient is φ = 27141192.

The previous prime is 40777127. The next prime is 40777133. The reversal of 40777131 is 13177704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40777131 - 2² = 40777127 is a prime.

It is a super-2 number, since 2×40777131² = 3325548825182322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40777133) 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, 8641 + ... + 12498.

It is an arithmetic number, because the mean of its divisors is an integer number (6807080).

Almost surely, 2^40777131 is an apocalyptic number.

40777131 is a deficient number, since it is larger than the sum of its proper divisors (13679509).

40777131 is a wasteful number, since it uses less digits than its factorization.

40777131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21785.

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 40777131 is about 6385.6973777341. The cubic root of 40777131 is about 344.1957911698.

The spelling of 40777131 in words is "forty million, seven hundred seventy-seven thousand, one hundred thirty-one".