40262969 has 2 divisors, whose sum is σ = 40262970. Its totient is φ = 40262968.

The previous prime is 40262951. The next prime is 40263019. The reversal of 40262969 is 96926204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39187600 + 1075369 = 6260^2 + 1037^2 .

It is a cyclic number.

It is not a de Polignac number, because 40262969 - 2⁸ = 40262713 is a prime.

It is a super-2 number, since 2×40262969² = 3242213345389922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40262909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20131484 + 20131485.

It is an arithmetic number, because the mean of its divisors is an integer number (20131485).

Almost surely, 2^40262969 is an apocalyptic number.

It is an amenable number.

40262969 is a deficient number, since it is larger than the sum of its proper divisors (1).

40262969 is an equidigital number, since it uses as much as digits as its factorization.

40262969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 40262969 is about 6345.3107882908. The cubic root of 40262969 is about 342.7430040621.

The spelling of 40262969 in words is "forty million, two hundred sixty-two thousand, nine hundred sixty-nine".