610400142 has 48 divisors (see below), whose sum is σ = 1445558400. Its totient is φ = 184611600.

The previous prime is 610400111. The next prime is 610400173. The reversal of 610400142 is 241004016.

610400142 is a `hidden beast` number, since 610 + 40 + 0 + 14 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (610400111) and next prime (610400173).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110359 + ... + 115757.

It is an arithmetic number, because the mean of its divisors is an integer number (30115800).

Almost surely, 2^610400142 is an apocalyptic number.

610400142 is an abundant number, since it is smaller than the sum of its proper divisors (835158258).

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

610400142 is a wasteful number, since it uses less digits than its factorization.

610400142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5989 (or 5986 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 610400142 is about 24706.2773804554. The cubic root of 610400142 is about 848.2780095575.

Adding to 610400142 its reverse (241004016), we get a palindrome (851404158).

The spelling of 610400142 in words is "six hundred ten million, four hundred thousand, one hundred forty-two".