10521434 has 24 divisors (see below), whose sum is σ = 19828704. Its totient is φ = 4098600.

The previous prime is 10521377. The next prime is 10521437. The reversal of 10521434 is 43412501.

10521434 = 973² + 974² + ... + 983².

It is a super-2 number, since 2×10521434² = 221401146832712, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (10521437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1412 + ... + 4799.

It is an arithmetic number, because the mean of its divisors is an integer number (826196).

Almost surely, 2^10521434 is an apocalyptic number.

10521434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10521434 is a deficient number, since it is larger than the sum of its proper divisors (9307270).

10521434 is a wasteful number, since it uses less digits than its factorization.

10521434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242 (or 6231 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 10521434 is about 3243.6760010827. The cubic root of 10521434 is about 219.1248566957.

Adding to 10521434 its reverse (43412501), we get a palindrome (53933935).

The spelling of 10521434 in words is "ten million, five hundred twenty-one thousand, four hundred thirty-four".