402124611 has 8 divisors (see below), whose sum is σ = 612761344. Its totient is φ = 229785480.

The previous prime is 402124609. The next prime is 402124651. The reversal of 402124611 is 116421204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402124611 - 2¹ = 402124609 is a prime.

It is a super-3 number, since 3×402124611³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 19148791 = 402124611 / (4 + 0 + 2 + 1 + 2 + 4 + 6 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402124601) 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, 9574375 + ... + 9574416.

It is an arithmetic number, because the mean of its divisors is an integer number (76595168).

Almost surely, 2^402124611 is an apocalyptic number.

402124611 is a deficient number, since it is larger than the sum of its proper divisors (210636733).

402124611 is a wasteful number, since it uses less digits than its factorization.

402124611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19148801.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 402124611 is about 20053.0449308827. The cubic root of 402124611 is about 738.1085191585.

Adding to 402124611 its reverse (116421204), we get a palindrome (518545815).

The spelling of 402124611 in words is "four hundred two million, one hundred twenty-four thousand, six hundred eleven".