36405428 has 12 divisors (see below), whose sum is σ = 64078980. Its totient is φ = 18097152.

The previous prime is 36405427. The next prime is 36405431. The reversal of 36405428 is 82450463.

It can be written as a sum of positive squares in 2 ways, for example, as 33965584 + 2439844 = 5828^2 + 1562^2 .

It is a junction number, because it is equal to n+sod(n) for n = 36405394 and 36405403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36405427) 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, 25613 + ... + 26996.

It is an arithmetic number, because the mean of its divisors is an integer number (5339915).

Almost surely, 2^36405428 is an apocalyptic number.

It is an amenable number.

36405428 is a deficient number, since it is larger than the sum of its proper divisors (27673552).

36405428 is a wasteful number, since it uses less digits than its factorization.

36405428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52786 (or 52784 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 36405428 is about 6033.6910759501. The cubic root of 36405428 is about 331.4276318911.

The spelling of 36405428 in words is "thirty-six million, four hundred five thousand, four hundred twenty-eight".