4721136 has 40 divisors (see below), whose sum is σ = 13939584. Its totient is φ = 1348800.

The previous prime is 4721107. The next prime is 4721137. The reversal of 4721136 is 6311274.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4721137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6690 + ... + 7361.

Almost surely, 2^4721136 is an apocalyptic number.

It is an amenable number.

4721136 is an abundant number, since it is smaller than the sum of its proper divisors (9218448).

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

4721136 is a wasteful number, since it uses less digits than its factorization.

4721136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14069 (or 14063 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 4721136 is about 2172.8175257025. The cubic root of 4721136 is about 167.7575868898.

Subtracting from 4721136 its product of digits (1008), we obtain a triangular number (4720128 = T₃₀₇₂).

The spelling of 4721136 in words is "four million, seven hundred twenty-one thousand, one hundred thirty-six".