40279026 has 16 divisors (see below), whose sum is σ = 84060864. Its totient is φ = 12842544.

The previous prime is 40279009. The next prime is 40279027. The reversal of 40279026 is 62097204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40278984 and 40279002.

It is not an unprimeable number, because it can be changed into a prime (40279027) 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, 145801 + ... + 146076.

It is an arithmetic number, because the mean of its divisors is an integer number (5253804).

Almost surely, 2^40279026 is an apocalyptic number.

40279026 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40279026 is an abundant number, since it is smaller than the sum of its proper divisors (43781838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40279026 is a wasteful number, since it uses less digits than its factorization.

40279026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291905.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 40279026 is about 6346.5759272225. The cubic root of 40279026 is about 342.7885603397.

The spelling of 40279026 in words is "forty million, two hundred seventy-nine thousand, twenty-six".