402124433 has 32 divisors (see below), whose sum is σ = 451325952. Its totient is φ = 357033600.

The previous prime is 402124427. The next prime is 402124441. The reversal of 402124433 is 334421204.

It is not a de Polignac number, because 402124433 - 2¹² = 402120337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402124399 and 402124408.

It is not an unprimeable number, because it can be changed into a prime (402124403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1905698 + ... + 1905908.

It is an arithmetic number, because the mean of its divisors is an integer number (14103936).

Almost surely, 2^402124433 is an apocalyptic number.

402124433 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

402124433 is a deficient number, since it is larger than the sum of its proper divisors (49201519).

402124433 is a wasteful number, since it uses less digits than its factorization.

402124433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 402124433 is about 20053.0404926535. The cubic root of 402124433 is about 738.1084102509.

Adding to 402124433 its reverse (334421204), we get a palindrome (736545637).

The spelling of 402124433 in words is "four hundred two million, one hundred twenty-four thousand, four hundred thirty-three".