421083528 has 32 divisors (see below), whose sum is σ = 1075109760. Its totient is φ = 137374400.

The previous prime is 421083527. The next prime is 421083547. The reversal of 421083528 is 825380124.

It is a super-2 number, since 2×421083528² = 354622675105853568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (421083527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185523 + ... + 187778.

It is an arithmetic number, because the mean of its divisors is an integer number (33597180).

Almost surely, 2^421083528 is an apocalyptic number.

It is an amenable number.

421083528 is an abundant number, since it is smaller than the sum of its proper divisors (654026232).

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

421083528 is a wasteful number, since it uses less digits than its factorization.

421083528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373357 (or 373353 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 421083528 is about 20520.3198805477. The cubic root of 421083528 is about 749.5306859426.

The spelling of 421083528 in words is "four hundred twenty-one million, eighty-three thousand, five hundred twenty-eight".