40346621 has 8 divisors (see below), whose sum is σ = 46980864. Its totient is φ = 33930000.

The previous prime is 40346617. The next prime is 40346629. The reversal of 40346621 is 12664304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40346621 - 2² = 40346617 is a prime.

It is a super-2 number, since 2×40346621² = 3255699652235282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40346629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54005 + ... + 54746.

It is an arithmetic number, because the mean of its divisors is an integer number (5872608).

Almost surely, 2^40346621 is an apocalyptic number.

It is an amenable number.

40346621 is a deficient number, since it is larger than the sum of its proper divisors (6634243).

40346621 is a wasteful number, since it uses less digits than its factorization.

40346621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108811.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40346621 is about 6351.8990073835. The cubic root of 40346621 is about 342.9802055176.

It can be divided in two parts, 403466 and 21, that multiplied together give a triangular number (8472786 = T₄₁₁₆).

The spelling of 40346621 in words is "forty million, three hundred forty-six thousand, six hundred twenty-one".