428076534 has 16 divisors (see below), whose sum is σ = 868932288. Its totient is φ = 140562312.

The previous prime is 428076521. The next prime is 428076547. The reversal of 428076534 is 435670824.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (428076521) and next prime (428076547).

It is a super-2 number, since 2×428076534² = 366499037922906312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 428076492 and 428076501.

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, 532032 + ... + 532835.

It is an arithmetic number, because the mean of its divisors is an integer number (54308268).

Almost surely, 2^428076534 is an apocalyptic number.

428076534 is an abundant number, since it is smaller than the sum of its proper divisors (440855754).

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

428076534 is a wasteful number, since it uses less digits than its factorization.

428076534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064939.

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 428076534 is about 20690.0104881559. The cubic root of 428076534 is about 753.6571214100.

The spelling of 428076534 in words is "four hundred twenty-eight million, seventy-six thousand, five hundred thirty-four".