942550421 has 4 divisors (see below), whose sum is σ = 944402700. Its totient is φ = 940698144.

The previous prime is 942550417. The next prime is 942550451. The reversal of 942550421 is 124055249.

942550421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124055249 = 4831 ⋅25679.

It can be written as a sum of positive squares in 2 ways, for example, as 800607025 + 141943396 = 28295^2 + 11914^2 .

It is a cyclic number.

It is not a de Polignac number, because 942550421 - 2² = 942550417 is a prime.

It is a super-2 number, since 2×942550421² = 1776802592254554482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942550451) 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, 925376 + ... + 926393.

It is an arithmetic number, because the mean of its divisors is an integer number (236100675).

Almost surely, 2^942550421 is an apocalyptic number.

It is an amenable number.

942550421 is a deficient number, since it is larger than the sum of its proper divisors (1852279).

942550421 is a wasteful number, since it uses less digits than its factorization.

942550421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852278.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 942550421 is about 30700.9840396037. The cubic root of 942550421 is about 980.4712508635.

The spelling of 942550421 in words is "nine hundred forty-two million, five hundred fifty thousand, four hundred twenty-one".