537138740 has 24 divisors (see below), whose sum is σ = 1187360160. Its totient is φ = 203547168.

The previous prime is 537138739. The next prime is 537138769. The reversal of 537138740 is 47831735.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 537138694 and 537138703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706382 + ... + 707141.

It is an arithmetic number, because the mean of its divisors is an integer number (49473340).

Almost surely, 2^537138740 is an apocalyptic number.

It is an amenable number.

537138740 is an abundant number, since it is smaller than the sum of its proper divisors (650221420).

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

537138740 is a wasteful number, since it uses less digits than its factorization.

537138740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413551 (or 1413549 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 537138740 is about 23176.2537956418. The cubic root of 537138740 is about 812.8844678276.

The spelling of 537138740 in words is "five hundred thirty-seven million, one hundred thirty-eight thousand, seven hundred forty".