36721434 has 16 divisors (see below), whose sum is σ = 73577088. Its totient is φ = 12218112.

The previous prime is 36721417. The next prime is 36721439. The reversal of 36721434 is 43412763.

36721434 = T₂₇ + T₂₈ + ... + T₆₀₃.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (36721439) 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, 1842 + ... + 8765.

It is an arithmetic number, because the mean of its divisors is an integer number (4598568).

Almost surely, 2^36721434 is an apocalyptic number.

36721434 is an abundant number, since it is smaller than the sum of its proper divisors (36855654).

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

36721434 is a wasteful number, since it uses less digits than its factorization.

36721434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11189.

The product of its digits is 12096, while the sum is 30.

The square root of 36721434 is about 6059.8212844935. The cubic root of 36721434 is about 332.3838220755.

The spelling of 36721434 in words is "thirty-six million, seven hundred twenty-one thousand, four hundred thirty-four".