38737240 has 16 divisors (see below), whose sum is σ = 87158880. Its totient is φ = 15494880.

The previous prime is 38737229. The next prime is 38737247. The reversal of 38737240 is 4273783.

It is a junction number, because it is equal to n+sod(n) for n = 38737196 and 38737205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38737247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484176 + ... + 484255.

It is an arithmetic number, because the mean of its divisors is an integer number (5447430).

Almost surely, 2^38737240 is an apocalyptic number.

It is an amenable number.

38737240 is an abundant number, since it is smaller than the sum of its proper divisors (48421640).

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

38737240 is a wasteful number, since it uses less digits than its factorization.

38737240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968442 (or 968438 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 38737240 is about 6223.9248067437. The cubic root of 38737240 is about 338.3578251311.

The spelling of 38737240 in words is "thirty-eight million, seven hundred thirty-seven thousand, two hundred forty".