39621254 has 16 divisors (see below), whose sum is σ = 63870768. Its totient is φ = 18365952.

The previous prime is 39621229. The next prime is 39621259. The reversal of 39621254 is 45212693.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 39621254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39621259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6419 + ... + 10974.

It is an arithmetic number, because the mean of its divisors is an integer number (3991923).

Almost surely, 2^39621254 is an apocalyptic number.

39621254 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

39621254 is a deficient number, since it is larger than the sum of its proper divisors (24249514).

39621254 is a wasteful number, since it uses less digits than its factorization.

39621254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17479.

The product of its digits is 12960, while the sum is 32.

The square root of 39621254 is about 6294.5416036436. The cubic root of 39621254 is about 340.9123535289.

The spelling of 39621254 in words is "thirty-nine million, six hundred twenty-one thousand, two hundred fifty-four".