507142740 has 48 divisors (see below), whose sum is σ = 1529232768. Its totient is φ = 124834944.

The previous prime is 507142729. The next prime is 507142747. The reversal of 507142740 is 47241705.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 507142698 and 507142707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507142747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324312 + ... + 325871.

It is an arithmetic number, because the mean of its divisors is an integer number (31859016).

Almost surely, 2^507142740 is an apocalyptic number.

It is an amenable number.

507142740 is an abundant number, since it is smaller than the sum of its proper divisors (1022090028).

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

507142740 is a wasteful number, since it uses less digits than its factorization.

507142740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650208 (or 650206 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 507142740 is about 22519.8299283098. The cubic root of 507142740 is about 797.4621346461.

The spelling of 507142740 in words is "five hundred seven million, one hundred forty-two thousand, seven hundred forty".