40251426 has 16 divisors (see below), whose sum is σ = 84003264. Its totient is φ = 12833744.

The previous prime is 40251401. The next prime is 40251437. The reversal of 40251426 is 62415204.

It is a super-3 number, since 3×40251426³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40251396 and 40251405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145701 + ... + 145976.

It is an arithmetic number, because the mean of its divisors is an integer number (5250204).

Almost surely, 2^40251426 is an apocalyptic number.

40251426 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40251426 is an abundant number, since it is smaller than the sum of its proper divisors (43751838).

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

40251426 is a wasteful number, since it uses less digits than its factorization.

40251426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291705.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40251426 is about 6344.4011537733. The cubic root of 40251426 is about 342.7102472409.

The spelling of 40251426 in words is "forty million, two hundred fifty-one thousand, four hundred twenty-six".