42906554 has 8 divisors (see below), whose sum is σ = 64518420. Its totient is φ = 21400416.

The previous prime is 42906551. The next prime is 42906557. The reversal of 42906554 is 45560924.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42906551) and next prime (42906557).

It can be written as a sum of positive squares in 2 ways, for example, as 41306329 + 1600225 = 6427^2 + 1265^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42906551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25409 + ... + 27044.

Almost surely, 2^42906554 is an apocalyptic number.

42906554 is a deficient number, since it is larger than the sum of its proper divisors (21611866).

42906554 is a wasteful number, since it uses less digits than its factorization.

42906554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52864.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 42906554 is about 6550.3094583386. The cubic root of 42906554 is about 350.0858401698.

The spelling of 42906554 in words is "forty-two million, nine hundred six thousand, five hundred fifty-four".