36278428 has 12 divisors (see below), whose sum is σ = 63626472. Its totient is φ = 18099440.

The previous prime is 36278419. The next prime is 36278441. The reversal of 36278428 is 82487263.

It is a super-2 number, since 2×36278428² = 2632248676302368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7843 + ... + 11578.

It is an arithmetic number, because the mean of its divisors is an integer number (5302206).

Almost surely, 2^36278428 is an apocalyptic number.

It is an amenable number.

36278428 is a deficient number, since it is larger than the sum of its proper divisors (27348044).

36278428 is a wasteful number, since it uses less digits than its factorization.

36278428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19892 (or 19890 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 36278428 is about 6023.1576436285. The cubic root of 36278428 is about 331.0417887930.

The spelling of 36278428 in words is "thirty-six million, two hundred seventy-eight thousand, four hundred twenty-eight".