3538731 has 32 divisors (see below), whose sum is σ = 5824000. Its totient is φ = 1905120.

The previous prime is 3538699. The next prime is 3538747. The reversal of 3538731 is 1378353.

It is not a de Polignac number, because 3538731 - 2⁵ = 3538699 is a prime.

It is a super-2 number, since 2×3538731² = 25045234180722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (7560) is a multiple of the sum of its prime divisors (210).

3538731 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3538781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19461 + ... + 19641.

It is an arithmetic number, because the mean of its divisors is an integer number (182000).

Almost surely, 2^3538731 is an apocalyptic number.

3538731 is a deficient number, since it is larger than the sum of its proper divisors (2285269).

3538731 is a wasteful number, since it uses less digits than its factorization.

3538731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 210 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 3538731 is about 1881.1515090497. The cubic root of 3538731 is about 152.3874435959.

The spelling of 3538731 in words is "three million, five hundred thirty-eight thousand, seven hundred thirty-one".