40377031 has 2 divisors, whose sum is σ = 40377032. Its totient is φ = 40377030.

The previous prime is 40377011. The next prime is 40377037. The reversal of 40377031 is 13077304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40377031 - 2¹⁵ = 40344263 is a prime.

It is a super-2 number, since 2×40377031² = 3260609264749922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40376987 and 40377005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40377037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20188515 + 20188516.

It is an arithmetic number, because the mean of its divisors is an integer number (20188516).

Almost surely, 2^40377031 is an apocalyptic number.

40377031 is a deficient number, since it is larger than the sum of its proper divisors (1).

40377031 is an equidigital number, since it uses as much as digits as its factorization.

40377031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 40377031 is about 6354.2923288121. The cubic root of 40377031 is about 343.0663540678.

The spelling of 40377031 in words is "forty million, three hundred seventy-seven thousand, thirty-one".