1201837442 has 16 divisors (see below), whose sum is σ = 1942089912. Its totient is φ = 554505600.

The previous prime is 1201837409. The next prime is 1201837489. The reversal of 1201837442 is 2447381021.

It can be written as a sum of positive squares in 4 ways, for example, as 1014995881 + 186841561 = 31859^2 + 13669^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201837399 and 1201837408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95942 + ... + 107742.

Almost surely, 2^1201837442 is an apocalyptic number.

1201837442 is a deficient number, since it is larger than the sum of its proper divisors (740252470).

1201837442 is a wasteful number, since it uses less digits than its factorization.

1201837442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15733.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 1201837442 is about 34667.5271976528. The cubic root of 1201837442 is about 1063.2006741101.

The spelling of 1201837442 in words is "one billion, two hundred one million, eight hundred thirty-seven thousand, four hundred forty-two".