40426263 has 16 divisors (see below), whose sum is σ = 61824000. Its totient is φ = 26080920.

The previous prime is 40426219. The next prime is 40426273. The reversal of 40426263 is 36262404.

It is not a de Polignac number, because 40426263 - 2¹³ = 40418071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40426213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23313 + ... + 24986.

It is an arithmetic number, because the mean of its divisors is an integer number (3864000).

Almost surely, 2^40426263 is an apocalyptic number.

40426263 is a deficient number, since it is larger than the sum of its proper divisors (21397737).

40426263 is a wasteful number, since it uses less digits than its factorization.

40426263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48339 (or 48333 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 40426263 is about 6358.1650654886. The cubic root of 40426263 is about 343.2057318472.

Adding to 40426263 its reverse (36262404), we get a palindrome (76688667).

The spelling of 40426263 in words is "forty million, four hundred twenty-six thousand, two hundred sixty-three".