36921242 has 4 divisors (see below), whose sum is σ = 55381866. Its totient is φ = 18460620.

The previous prime is 36921193. The next prime is 36921251. The reversal of 36921242 is 24212963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24212963 = 2341 ⋅10343.

It can be written as a sum of positive squares in only one way, i.e., 34000561 + 2920681 = 5831^2 + 1709^2 .

It is a super-2 number, since 2×36921242² = 2726356221645128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9230309 + ... + 9230312.

Almost surely, 2^36921242 is an apocalyptic number.

36921242 is a deficient number, since it is larger than the sum of its proper divisors (18460624).

36921242 is a wasteful number, since it uses less digits than its factorization.

36921242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18460623.

The product of its digits is 5184, while the sum is 29.

The square root of 36921242 is about 6076.2852138457. The cubic root of 36921242 is about 332.9855855628.

The spelling of 36921242 in words is "thirty-six million, nine hundred twenty-one thousand, two hundred forty-two".