213073432 has 32 divisors (see below), whose sum is σ = 469360080. Its totient is φ = 89400960.

The previous prime is 213073423. The next prime is 213073451. The reversal of 213073432 is 234370312.

213073432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213073397 and 213073406.

It is a congruent number.

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, 91983 + ... + 94270.

Almost surely, 2^213073432 is an apocalyptic number.

213073432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213073432 is an abundant number, since it is smaller than the sum of its proper divisors (256286648).

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

213073432 is a wasteful number, since it uses less digits than its factorization.

213073432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186283 (or 186279 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 213073432 is about 14597.0350414048. The cubic root of 213073432 is about 597.2778836288.

The spelling of 213073432 in words is "two hundred thirteen million, seventy-three thousand, four hundred thirty-two".